Technical Support

Bolt Cutter Cutting Capacity

Bolt Cutter Cutting Capacity

NOMINAL SIZE
(BASED ON OVERALL LENGTH OF TOOL)
CUTTING CAPACITY
SOFT-TO-MEDIUM HARD MATERIALS
UP TO 31 ROCKWELLC
HARD MATERIALS UP TO 42 ROCKWELLC
18″ (457mm) 0.375″ (10mm) 0.250″ (6mm)
24″ (610mm) 0.375″ (10mm) 0.250″ (6mm)
30″ (762mm) 0.500″ (12mm) 0.375″ (10mm)
36″ (914mm) 0.563″ (14mm) 0.437″ (11mm)
Bonding Instructions for Nuplabond®

Bonding Instructions for Nuplabond®

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1. Using sandpaper briskly rub the inside of the eye-hole. Remove excess point and dirt until the walls of the eyehole are clean.

2. Apply a piece of duct tape or industrial masking tape over the outside end of the head.

3. Mix part A and B of the pre-measured epoxy adhesive in the tub provided or in some other small container. Pour all of the pre-measured mixed epoxy into eyehole.

4. Set head with tape down on floor with open end of eyehole up.

5. Slowly place handle into epoxy until the handle stops on the floor. Hold/prop handle upright and straight for 24 hours.

Nuplaglas® Profiles

Nuplaglas® Profiles

Glass Size: 43
Density: 0.0948#/ft

Glass Size: 51
Density: 0.1356#/ft

Glass Size:65
Density: 0.2028#/ft

Glass Size: 75
Density: 0.2424#/ft

Glass Size: 85
Density: 0.3456#/ft

Glass Size:94
Density: 0.3888#/ft

Glass Size: 95
Density: 0.4104#/ft

Glass Size:100
Density: 0.5028#/ft

Glass Size: 110
Density: 0.4932#/ft

Glass Size: 118
Density: 0.6216#/ft

Glass Size: 122
Density: 0.7356#/ft

Glass Size: 139
Density: 0.4872#/ft

Glass Size: 140
Density: 0.9528#/ft

Glass Size: 147
Density: 0.6624#/ft

Glass Size:I-BEAM
Density: 0.6744#/ft

Nuplaglas® Core Styles

Nuplaglas® Core Styles

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Ergo-Power® with Styrene Tubing &
Classic Nuplaglas® Core

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Solid
Classic Nuplaglas®

stycore_profile
Styrene Core
Classic Nuplaglas®

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Styrene Tubing Core
Classic Nuplaglas®

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Wagon Wheel Core
Classic Nuplaglas®

NUPLA digging tool handles can be made in a number of different configurations depending on the application. For the most heavy-duty applications that typically require a solid shank style blade, solid Classic Nuplaglas® is used. Most of the standard shovels and spades make use of the extruded styrene ‘wagon wheel’ style core. This design provides very good strength while also reducing the weight of the handle. When looking to reduce the weight of the handle, NUPLA has used thick and thin walled extruded styrene tubing as a core down the middle of the Nuplaglas® handle. When applications require a light weight handle, but with outstanding strength – NUPLA produces handles with a combination of either styrene round or wagon wheel tubing and a solid Nuplaglas® rebar. For Ergo-Power® handles, the same and core options covered by a protective polypropylene material to produce an ergonomically designed and comfortable handle.

Common Performance Tests

Common Performance Tests

STATIC FORCE TEST – STRIKING TOOLS

Assembled hammers shall not break, loosen, or otherwise fail when subjected to the static force test (reference sketch to left). The following test procedure shall be used:

  • While the hammer head is locked securely in a test fixture with the striking face down and the handle extended in a horizontal plane, a static force shall be applied vertically at a point on the handle measuring 10 inches from the top of the hammer.
  • An exception shall be that the force be applied 9 inches from the top of the hammer for small 2 ounce ball peen hammers.
  • The testing loads and bending forces are dependent on the head weight and are shown on the chart to the right. Handles shall not break, loosen, or otherwise fail.

It is not uncommon for Nuplaglas striking tool handles to exceed 500# in this test!

STATIC FORCE TEST
Hammer Head Weight
(ounces)
Static Force
(pounds)
less than 7 60
7-13 125
13-16 150
16-20 175
20-24 200
24-28 225
over 28 250

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Above: Yellow handle is being pulled downward while the sledge head is clamped to a digital load cell to show the force needed to separate handle from head.

TENSILE FORCE TEST – STRIKING TOOLS

Prior to tensile force testing, sample hammers shall be subjected to the following striking force test:

  • The tool shall withstand 20 swinging blows on each striking face at a velocity of 45-55 feet per second (approximated by a person of average build, 160-180 pounds). This velocity shall be achieved with the hammer held or fixtured at the normal gripping area.
  • The test shall be conducted at room temperature.
  • The blows shall be struck against a smooth, flat, or slightly convex surface of a rigidly supported steel object that has a minimum diameter of 3 inches, a minimum length of 2 inches, and a hardness of 92-105 HRB or equivalent.
  • The striking faces shall not sink, mushroom, chip, crack, or spall.

Following the striking test, the head and handle shall not loosen or separate when subjected to tensile force testing (reference photo to left). The hammers shall be tested using the static tensile forces for chemically bonded (Nuplabond®) assemblies or one-piece hammers and those specified for wedged (Mech/Loc®) assemblies, reference the charts to the right. Handles shall not break, loosen, or otherwise fail.

In nearly all cases, striking tools assembled using Nuplabond® easily exceed 3,000# and, with some assemblies, have gone well over 10,000#!

WEDGED HAMMERS – MECH/LOC® OR WOOD
Hammer Head Weight
(ounces)
Static Tensile Force
(pounds)
less than 6 200
6-20 400
20 and over 1,000
CHEMICALLY BONDED HAMMERS – NUPLABOND
Hammer Head Weight
(ounces)
Static Tensile Force
(pounds)
less than 13 750
13 and over 2,250

STATIC FORCE TEST – DIGGING TOOLS

nuplatoolAlthough the USA Federal Specifications are now obsolete for digging tools, NUPLA continues to test digging tools using the static force test called out in #GGG-S-326E. The blade shall be securely clamped to a fixture (reference sketch below). A 175 pound weight shall be gradually applied to the handle at 26-28 inches from the step. The handle shall securely hold the load for 120-125 seconds. The tool fails if the handle or blade fractures, breaks, or maintains a permanent deflection of more than 1 inch. The shovel is also tested in the upside down position and is expected to perform to the same standards.

It is not uncommon for Nuplaglas® digging tool handles to exceed 250# in this test!

Ergonomics & Safety

Ergonomics & Safety

NUPLA is committed to making the strongest, safest, and most ergonomic tools in the industry. Ergonomics is another word for Human Engineering, i.e., the study of the relationship between humans and machines in terms of physiological and technological requirements. This description is synonymous with NUPLA’s approach to developing its Ergo-Power® striking and digging tool lines as well as its soft face lines of striking tools. In designing these tools, NUPLA adopted the theory of ‘Commercial Ergonomics’ which emphasizes greater comfort and reduced user fatigue. Over the centuries, wood handled tools did not address the issue of ergonomics as wood handle manufacturers maximized available wood. Since they were unable to cut wood into ergonomic shapes, manufacturers combined wood handles with grips of various materials, such as foam, in their efforts to make an ergonomic tool.

NUPLA’s Ergo-Power® digging tools, designed to fit the user’s hands, feature the combination of an injection molded outer polypropylene sleeve over a Nuplaglas® core. The comfortable handle shape increases tool efficiency by eliminating unnecessary movement, such as the twisting motion required by an unbalanced shovel load. With improved hand control, this unique handle design also reduces forearm fatigue and blistering of the hands. NUPLA’s Ergo-Power® striking tools, which feature the same manufacturing technology, reduce arm vibration and thus user fatigue. The harmonics or ‘shock load’ while striking is absorbed by the molded polypropylene shell which acts as a natural shock absorber.

NUPLA designed and patented its Smart Hammer Technology® to make the most ergonomic dead blow, non-marring striking tools in the industry. The Power Drive® tool line, which features Smart Hammer Technology® , offers 69 tools including non-sparking, and is based on the OSHA concept of reducing musculoskeletal injuries involving repetitive striking motions. The dead blow feature of Power Drive® hammers, which is achieved by means of free-flowing shot contained in the molded tool head cavities, not only reduces vibration and sting but also increases driving force by 40% requiring less striking effort. Non-marring and non-sparking features further enhance the tool line.

NUPLA’s Classic Nuplaglas® fiberglass handled digging and striking tools feature many styles of soft, comfortable, and ergonomic grips suitable for most applications. The variety of grip styles designed for a better fit, alleviate the gripping effort and ‘squeeze’ even in moist or humid conditions.

Safety, a key factor in the design of all NUPLA products, can also be described as ‘freedom from danger, risk, or injury’. NUPLA products use the finest raw materials and combine pultruded fiberglass, engineered polymers, adhesives and epoxy bonding methods developed over decades to produce tools that far exceed all ANSI and Federal specifications. These features help to prevent catastrophic tool failures, even under extreme conditions, thus minimizing the possibility of injury. For example, tests of NUPLA’s Ergo-Power® digging tools have proven that the external engineered polymer sleeve will contain any fracture of the internal fiberglass core and prevent user injury. This same feature enhances the safety of NUPLA’s Ergo-Power® striking tools. The polymer sleeves around the fiberglass handles of these tools will contain any fracture of the Nuplaglas® and prevent separation of the handle from the striking head. The Ergo-Power® feature is also available in NUPLA’s Power Pylon® shovel line.


Ergonomic Fact Sheet (January 27, 1999)

Sources / References:

  • Occupational Safety & Health Administration (OSHA)
  • National Safety Council
  • International Ergonomics Association
  • Human Factors and Ergonomics Society
  • California Occupational Safety & Health Standards Board
  • American Society of Safety Engineers (ASSE)

OSHA is developing a national ergonomic protection standard that will promote technological improvements to control exposure to workplace ergonomic risk factors.

Currently, OSHA can consider ergonomic hazards (under Section 5 of the OSHA Act) when making normal workplace inspections. OSHA Inspectors may issue a citation to an employer for ergonomic disorders if:

  • The “hazard is or should have been recognized” by the employer.
  • There is a “feasible and useful method” to correct the hazard.

CTD – Cumulative Trauma Disorders are now the leading type of industrial injury.

RMI – Repetitive Motion Injuries.

Shock, vibration, and stress are major contributors to fatigue and CTD’s.

Carpal Tunnel Syndrome – one of the most common CTD’s is caused primarily by poor work positioning or awkward wrist postures. One case can cost an employer around $30,000 in compensation claims and lost productivity, and an average of $50,000 in legal costs or damages.

Tendonitis (“Tennis elbow”) can be caused when bones and joints are routinely subjected to heavy shocks and stresses.

Injuries related to poor ergonomics cost about $25 billion per year.

A quality ergonomic tool is designed to deliver the greatest power with the least effort while exposing the worker to a minimum of shock, vibration, stress, and poor posture.

Industry Performance & Safety Standards

Industry Performance & Safety Standards

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Nupla is a member of the Hand Tools Institute

ASME B107.59-2002 SLUGGING AND STRIKING WRENCHES
ANSI B209.7-1982 AMERICAN NATIONAL STANDARD FOR HAND TOOLS, RIPPING CHISELS, AND FLOORING/ELEC- TRICIAN’S CHISELS: SAFETY REQUIREMENTS
ANSI Z525.4-2002 AMERICAN NATIONAL STANDARD FOR PRODUCT SAFETY SIGNS AND LABELS
ANSI Z535.1-2002 AMERICAN NATIONAL STANDARD FOR SAFETY COLOR CODE
ANSI Z535.3-2002 AMERICAN NATIONAL STANDARD FOR CRITERIA FOR SAFETY SYMBOLS
ASME B107.100-2002 WRENCHES
ASME B107.41-2004 NAIL HAMMERS: SAFETY REQUIREMENTS
ASME B107.42M-1997 HATCHETS: SAFETY REQUIREMENTS
ASME B107.43-2002 WOOD-SPLITTING WEDGES
ASME B107.52M-1998 NAIL PULLER BARS: SAFETY REQUIREMENTS
ASME B107.53-2004 BALL PEEN HAMMERS: SAFETY REQUIREMENTS
ASME B107.54-2001 HEAVY STRIKING TOOLS: SAFETY REQUIREMENTS
ASME B107.55-2002 AXES: SAFETY REQUIREMENTS
ASME B107.56-1999 BODY REPAIR HAMMERS AND DOLLY BLOCKS: SAFETY REQUIREMENTS
ASME B107.57-2005 BRICKLAYERS’ HAMMERS AND PROSPECTING PICKS
ASME B107.58M-1998 RIVETING, SCALING AND TINNER’S SETTING HAMMERS: SAFETY REQUIREMENTS
ASTM F1505-2007 STANDARD SPEnd CapIFICATION FOR INSULATED AND INSULATING STRIKING TOOLS
IEnd Cap 60900-2004 LIVE WORKING: HAND TOOLS FOR USE UP TO 1,000 Vac AND 1,500 Vdc
ISO 15601 HAMMERS: TECHINCAL SPECIFICATIONS CONCERNING STEEL HAMMER HEADS – TEST PROCEDURES
Nuplaglas® Properties

Nuplaglas® Properties

Chemical Properties
Effect of Sunlight and Weathering None to slight
Water Absorption – Weight change after 24 hours. 0.02%
Electrical Properties
Arc Resistance 135 seconds
Dielectric Constant 106 cycles @ 4.80
Dielectric Strength 200″ specimen @ 207 volts/MIL, short time, step by step
Power Factor 106 cycles @ 0.012
Volume Resistency ohms per centimeter, 50% relative humidity, 23°C, 73.4°F @ 1012
Physical Properties
Flexural Strength – This property is the force required to break a sample beam supported on two separate supports at the center. 125,000 pounds per square inch
IZOD Impact Strength – This property measures the relative resistance to fracture by a sudden blow such as with a hammer. 17.1 foot pounds per inch of notch
Modulus of Elasticity in Tension – This property is essentially a measure of stiffness. Defined as the ratio of the stress applied either tension or flexure to the strain or amount of yield which results from that stress. 6,000,000 pounds per square inch
Tensile Strength – This is the characteristic strength measured in pounds required to break a sample material under tension one inch by one inch in cross-section. 100,000 pounds per square inch
Specific Gravity 1.85 – 2.05 or approximately 2 grams per cubic centimeter
Thermal Properties
Burning Rate – Nuplaglas® is classed as self extinguishing. This means that although it might be forced to burn while exposed to a flame, it will not support combustion when the flame is removed. Self extinguishing
Coefficient Thermal Expansion – This property relates to the change in length which occurs as a result of a change in temperature. 2-3 millionths of an inch for each degree rise in temperature
K-Thermal Conductivity .00248 BTU per square foot per second per zero degrees F per inch
Operating Temperature – Nuplaglas® can withstand continuous exposure up to a temperature of 250°F without significant degradation of its strength. At a temperature of 250°F the handle will begin to lose flexural and impact strength properties. However, once the handle has cooled completely, it recovers to its original strength. There is no degradation of strength at 0°F. 250°F maximum continuous
Burning Rate – Nuplaglas® is classed as self extinguishing. This means that although it might be forced to burn while exposed to a flame, it will not support combustion when the flame is removed. Self extinguishing
NUPLA Trademarks & Unique Manufacturing Processes

NUPLA Trademarks & Unique Manufacturing Processes

Classic Nuplaglas®
Classic Nuplaglas® shovel handles feature pultruded structural fiberglass that is composed of millions of continuous parallel fiberglass strands cured under tension in a thermosetting resin, with reinforced sections at critical stress points. This design produces optimum strength-to-weight ratios and provides the user with safety and durability in all heavy duty industrial applications.

Ergo-Power®
Ergo-Power® is the trademarked name NUPLA uses to describe their ergonomic handles that feature a combination of an injection molded outer polypropylene sleeve over a Nuplaglas® core. In extreme use conditions, the external sleeve will contain any possible fracture of the internal Nuplaglas® core and create a ‘fail-safe failure’ within the handle. This prevents potential user injuries as in the case of failure of other materials like wood. The Ergo-Power® long and short D-grip handles have a smaller radius at the bottom to very comfortably rest in the user’s palm and has tapered flat sides for improved control..

Heat Drive
This is the NUPLA method of permanent attachment using heat to drive tanged tools, such as rakes, into Nuplaglas® handles.

IMPAX® Power Drive®
This line of NUPLA Hammers uses the unique Smart Hammer Technology® for producing the best surface-protective, non-marring, dead blow hammers in the industry. Shot loaded hammer heads made from a specially engineered material eliminate rebound and vibration which cause user fatigue. This also significantly reduces repetitive motion injuries.

Integral Rebar
These are the short lengths of solid Nuplaglas® incorporated at critical stress points in the handle pultrusion process to assure superior reinforcement while providing the optimum strength-to-weight ratio. The patented process is used extensively in NUPLA’s digging tool handles.

Mech/Loc®
This patented NUPLA invention features a Nuplaglas® replacement handle to which the Mech/Loc®, an engineering composite, is molded. The revolutionary twin-wedge design allows quick, easy, and safe assembly of handle to hammer head using no epoxy bond. This is ideal for fast handle replacements in the field or the workshop while eliminating the mess caused with epoxy bonding and down time for curing.

Nuplaglass®
This is NUPLA fiberglass that is manufactured using a patented process of pultruding millions of fiberglass strands combined with resin to create handles of tremendous strength and durability.

NuPole™ Digging & Telegraph System
The NuPole™ Digging and Telegraph System is another unique line to NUPLA that consists of a versatile detachable shovel system. The system features the most popular digging tool blades along with Classic Nuplaglas® handle extensions and comfortable grip end sections to achieve the desired length of tool quickly and easily.

NuPole™ Fire System
Detachable Fire Tools with the same principle behind NuPole™ Digging and Telegraph System. The system features the most popular fire tools along with Classic Nuplaglas® handle extensions and comfortable grip end sections.

Power Pylon®
The Power Pylon®, one of NUPLA’s revolutionary patented innovations, is designed for digging tools and sets upgraded standards to which all competitive products strive to match. The technology features a molded engineering composite structure that is reinforced with fiberglass to produce an integral fusion of Nuplaglas® handle and digging tool blade. This is a design derived from aerospace applications which eliminates the ‘weak link’ rivet connection that is also used in traditional shovels. It is this unique design which balances the performance of blade and handle, maximizing the load-bearing strength of the tool. Power Pylon® tools are better balanced and weigh less than similar tools. The Power Pylon® handle is one integral unit including Power Pylon®, handle, and grip. The design of an uninterrupted handle shaft provides dielectric safety in preventing the hand from sliding to the blade. The handle is bolted to the blade with hardened steel bolts secured by all temperature nylon locking threads.

Power Pylon® Blade
Innovative solid back blade used with Power Pylon® handles allows consolidation of open back, closed back and solid shank inventories. Ergonomic design blade has 17% more volume capacity and large comfortable forward turned step.

Pro-Tec®
The NUPLA line of quality shovels that offers all the features and benefits of the Classic Nuplaglas® line, but adds protection and comfort with durable Nuplaflex® abrasion resistant cladding over the entire length of the handle. Pro-Tec® shovel handles represent the latest technology in fiberglass tool handle production. Patented super-duty Nuplaglas® handles feature pultruded structural cores. Pro-Tec® shovels can be used in wet conditions where moisture-laden wood or tubular steel would have disastrous results.

Smart Hammer Technology®
NUPLA designed and patented their Smart Hammer Technology® in advance of OSHA’s mandate for properly designed ergonomic tools. OSHA studies determined that musculoskeletal disorders caused by repetitive stress are the number one occupational hazard. Hammer rebound, which leads to muscle tension, fatigue and poor work posture of the hand, wrist and arm, is the major contributor to risk of injury. Such recorded disorders result in over 80% of hand, wrist and elbow discomfort and damage. Worker’s Compensation claims associated with these hazards cost employers over $15 billion each year. Demanding applications require the safest and most durable tools available. NUPLA’s widest selection of high performance, ergonomically designed tools reduce fatigue and risk of injury while maximizing the work accomplished even in the toughest MRO applications.

Solid Hydraulic
This is the design used in the manufacture of digging tool handles and features a hollow core construction with sections of solid fiberglass at critical stress points for reduced tool weight and superior strength-to-weight ratio.

TCPRF Pultrusion
Method and process of pultruding millions of continuous, parallel glass fibers and curing them under exacting tension in a thermosetting process.
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Replaceable Tip Specifications

Replaceable Tip Specifications

Tip – Color Material Hardness
SUPER SOFT – GRAY VINYL 45 – 58 SHORE A – INSTANTANEOUS
SOFT-BROWN VINYL 45 – 58 SHORE A – 30 SECONDS
MEDIUM-RED VINYL 59 – 72 SHORE A – 30 SECONDS
TOUGH-GREEN VINYL 73 – 85 SHORE A – 30 SECONDS
MEDIUM HARD – CREAM NYLON 40 – 48 SHORE D – 30 SECONDS
HARD – BLACK NYLON 49 – 60 SHORE D – 30 SECONDS
EXTRA HARD – YELLOW NYLON 60 – 65 SHORE D – 30 SECONDS
STEEL STEEL 38 – 43 SHORE C – 30 SECONDS
BRASS BRASS 76 – 80 SHORE B – 30 SECONDS
‘Quick-Change’ Tips
Tip Diameter Screw Size Tip Weight
1″ 1/4 – 20 1.5 oz
1.5″ 5/16 – 18 4 oz
2″ 3/8 – 16 8 oz
2.5″ 1/2 – 13 1.0#
3″ 1/2 – 13 1.5#

Cushion Blow (CBH) Tips
Tip Diameter Screw Size Tip Weight
1.25″ 1/4 – 20 0.75 oz
1.375″ 1/4 – 20 1.0 oz
1.75″ 5/16 – 18 1.4 oz

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