ASME B107.600 pdf download.Screwdrivers and Screwd river Bits.
ASME B107.600 provides performance and safety requirements for noninsulated, hand-driven screwd rivers and hand-driven, hexagonal shank screwdriver bits intended for manual operation in driving or removing screws. The screwdrivers and hits are of the types normally used by cabinetmakers, carpenters, sheet metal workers, production workers, mechanics, etc.
Inclusion of dimensional data in the Standard is not intended to imply that all of the products described herein are stock production sizes. Manufacturers may make sizes other than those listed. Consumers are requested to consult with manufacturers concerning lists of stock production sizes.
2 DEFiNITIONS
See Fig. 1.
as…enshly: the blade plus the handle.
bit: removable driver comprised of a hexagonal shank plus tip.
blade: the shank plus the tip.
bolster: a change in the geometry of the shank at the junction of the handle.
handle: that portion of the screwdriver that is gripped with the hand.
shank: the portion of the blade between the tip and the handle.
tip: the portion of the blade that engages the screw recess.
3 REFERENCES
The following is a list of publications referenced in this Standard. The latest available edition shall be used.
ASTM D2240, Standard Test Method for Rubber Property — Durometer Hardness
ASTM E18, Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials
ASTM F1505, Standard Specification for Insulated and Insulating Hand Tools
Publisher: American Society for Testing and Materials (ASTM International), 100 Barr Harbor Drive,
P.O. Box C700, West Conshohocken, PA 19428-2959 (www.astm.org)
6.4 lip Toughness Test
The lip shall be tested as in the torsion test described in para. 6.2 except that the torque shall be increased until failure. If a fracture occurs, the pieces shall be refitted, and the tip shall show that permanent deformation had occurred prior to fracture. lithe tip fails without exhibiting such deformation, it shall be considered to have failed the tip toughness test.
6.5 Bending Moment Test (Type I, Class 1)
The bending moment test for flat tip screwdrivers shall be conducted in a manner similar to that shown in Fig. 7. In this test, the force shall be applied near the middle of the handle, the force acting at right angles to the axis of the screwdriver to lift weight W. A load- measuring device may be used in lieu of a deadweight in applying the bending load. When tested to the minimum bending moment specified in Table 1, the assembly shall not fracture, the blade shall not show any permanent deformation, and the handle shall not loosen 1mm the shank.
6.6 Solvent Resistance Test (Types I and IV)
Screwdrivers shall be capable of undergoing th following test without specified damage. Handles are to be fully immersed in motor vehicle brake fluid (SAEJI7O3), gasoline, ethylene glycol, and ethyl alcohol for 15 mm at room temperature, removed, and allowed to stand for 24 hr. A new assembly shall be used for each of the four test liquids. There shall be no permanent swelling, surface attack (except for manufacturer’s identification or paint removal), or failure to comply with paras. 6.3 and 6.7.
6.7 Handle Impact Test (Type I)
This teil shall be periormed at room temperature. The blade of the screwdriver shall be mounted vertically in a fixture affixed to the base of a suitable falling weight impact device. The blade shall rest on a solid surface to ensure that the blade does not move vertically in the fixture. The weight shall be 15 lb (6.8 kg) and shall be dropped unrestricted with some means to ensure that the full force of the falling weight will he acting normal to the striking surface. In conducting this test, care shall be taken that the impact energy will not be expended in flexing of the blade or in driving the screwdriver tip into the surface on which it rests. The blade may be shortened or blunted, ii necessary, to ensure a proper test. An equivalent test may be used if the impact energy requirement in Table 5 is met.
ASME B107.600 pdf download
