초록 ▼

An insulating ratcheting screwdriver includes an elongated composite shank formed of electrically insulating material and provided with a bit holder at a working end thereof. The other end of the shank has an axial recess in which is disposed one end of a hexagonal connecting pin, the other end of w

An insulating ratcheting screwdriver includes an elongated composite shank formed of electrically insulating material and provided with a bit holder at a working end thereof. The other end of the shank has an axial recess in which is disposed one end of a hexagonal connecting pin, the other end of which is press-fitted in an axial bore in one end of a metal coupler for joining the coupler to the shank. The metal coupler is removably received in a receptacle formed in a ratchet mechanism disposed in one end of an elongated, electrically insulating handle.

대표청구항 ▼

[ We claim:] [1.]1. An insulating hand tool comprising:an elongated shank formed of an electrically insulating material and having a handle end and a working end and a longitudinal axis and an axial recess in the handle end,a handle formed of electrically insulating material and having an axial rece

[ We claim:] [1.]1. An insulating hand tool comprising:an elongated shank formed of an electrically insulating material and having a handle end and a working end and a longitudinal axis and an axial recess in the handle end,a handle formed of electrically insulating material and having an axial receptacle in one end thereof,a metal coupler receivable in said receptacle and having a axial bore in one end thereof, anda hexagonal connecting pin having first and second ends respectively fixedly and permanently secured in said recess and said bore for joining said shank to said coupler.