ASME B107.20M:1998 pdf download PLIERS (LINEMAN’S, IRON WORKER’S, GAS, GLASS,FENCE, AND BATTERY)
SCOPE
This Standard covers the general, dimensional, andfunctional characteristics for pliers having gripping surfaces and/or cutting edges.
Inclusion of dimensional and functional data in thisStandard is not intended to imply that all products de.scribed herein are stock production sizes, Consumers arerequested to consult with mannfacturers concerning a listof stock production sizes
2 CLASSIFICATION
The following types and classes of plicrs arc coveredin this Standard.
Type I- Lineman’s
Class 1 – Square HeadClass 2 – Round Head
Class 3 – Square Head with Wire Stripper
Type Il – High Leverage Lineman’s
Class I – Square HeadClass 2 — Round Head
Class 3 – Square Head with Wire Stripper
Type Ill – [ron Worker’s
Class 1 – Regular Design Square Head
Ciass 2 – High Leverage Design Square HeadClass 3 — High Leverage Design Rounded Head
Type IV – Combinarion Jaw with Cutters
Type V-Gus
Type VI – Glass
Type Vlf – Fence, Singie Head
Type VIll – Battery
3 NORMATIVE REFERENCES
The following documents form a part of this Standardto the extent specified herein:
ASME B46.1-1995，Surface Texture (Surface Roughness,Waviness.and Lay)ASME B107.25M-1996Pliers – Performance TestMethudsPublisirer: The Ammerican Society of vechanicai EngineersThrcc Park Avenue,New Yurk, NY 10016-5990
4 REQUIREMENTS
4.1 llustrations
The illustrations hercin arc descriptive and not restrictive, and arc not intended to preclude the manufacture oipliers which are otherwisc in accordance with thisStandard. All figures are shown without comfort grips oisprings.
4.2 Wire Cutting
All types and classes of pliers with cutting edges covered in this Standard shall cut wire as specified in para.5.1.1.
4.3 Paper Cutting
Following the wire cut test in para 5.1.1, all types andclasses of pliers with cutting edges (except Types IV andVil) shall pass paper cuf fest in para. 5.1.2 without anyassistance such as bending, pulling, or twisting.
4.4 Miateriais
The mnaterials used in the manufacture of pliers shallbe such as to produce piiers conforming to the require-ments herein specified.
4.5 Design
Plicrs shall be similar to the figure to which referenceis madc and shall be proportioned in all paris su as to bestrong, durablc,and casy to operate. Requiremments specified here in accordancc with all test specimens shallwithstand applicable test procedure requirements withoutcracking or breaking.
4.6 Handles
4.6.1 Characteristics, Handles of pliers shall be soshaped as to afford a comfortable grip and shal! be freefrom rough edges and sharp corners, Inner handle surfaces shall be well rounded or beveled so as to preventinjury to the hand. Fnds of handles shall not touch whenjaws are in a closed position. Outer hand gripping sur