Wera 894/4/1 K Quick-Release Chuck, Universal Bit Holder 1/4" Wera's Universal Bit Holder with Quick-Release Chuck is designed for a firm, wobble-free connection that can be released quickly. Simply push the sleeve forward to change the bit. Fits all 1/4" DIN 3126-C 6.3 and E 6.3 bits and Wera Series 1. Features Wera's Quick-Release Chuck, 1/4" x 51mm shaft Allows for quick one-handed bit exchange for both insert and power bits Non-magnetic so that holder does not attact metal filings Wera's experience of narrow tolerance manufacturing techniques and careful material selection helps deliver maximum safety at work Manufacturer Part #: 05053522001