Collis Tap Drivers utilize the four way split to provide maximum gripping of the tap, to minimize pull-out and to reduce down time. Dimensions follow Automotive Industry specifications.
The square on tap shank engages with the broached square hole in the Tap Driver for a positive drive of the tap.
Made from high quality steel and heat treated.
Collis Tap Drivers are made to withstand the strain and abuse of production tapping operations.
Collis Tap Drivers listed are readily available from stock, sizes not listed can be quoted and supplied on request.
ISO Tap Size Pipe Tap Sizes
Machine Screw hand Tap Size 3/8
Outside Morse Taper 4
Diameter of Tap Shank 0.700 in.
Size of Square On Tap Shank 0.531 in.
Depth Tap Enters Driver 1 1/2 in.