1/4 Hex Adjustable Drill Chuck

No need to carry two separate tools”this chuck attaches to your Kolver screwdriver to convert it into a versatile drill. The standard 1/4" hex shank fits the hex socket of the screwdrivers, and the smallest drill bit the chuck will hold is a #70 wire gauge drill bit. Furnished with a chuck key.

Capacity
0.028- 1/4 in	0.7-6.5 mm

Micro Chuck

Drilling extremely small holes with your Kolver Screwdriver is easy with this chuck. It securely holds a #91 (0.0083") to #66 (0.0330") wire gauge drill bit.

For use with 1/4 Hex Adjustable Drill Chuck. Shank diameter is 1/8". Head diameter is 1/4". Overall length is 1 5/16".