Metal tools and implements – making – Blank or process – Hand tool
Patent
1994-06-17
1995-10-31
Watts, Douglas D.
Metal tools and implements, making
Blank or process
Hand tool
83436, B25B 1348
Patent
active
054619440
ABSTRACT:
A screwdriver includes an enlarged blade and a straight bit with parallel opposing surfaces. The surfaces apply torque to a screw slot over an increased area and reduce the tendency of the bit to slip out of the slot as compared to conventional commercially available screwdrivers. The screwdrivers are preferably made of hardened high quality steel so that they will be strong enough to withstand a substantial amount of torque.
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