Röhm Supra Keyless Chuck 10 Seconds, 0.5 mm, 3/8 Inch, Pack of 1, 871038

Zoro Tools

SUPRA-S Quick-action Drill Chucks A self tightening flat jaw drill chuck suitable for stationary and hand-operated drills. Features Strong retaining ring Manufactured from steel Hardened and superfinished Only suitable for clockwise rotation Benefits Concentricity of up to 0.17 mm Increase in the clamping force proportional to the cutting force by the re-tightening function Easy and quick clamping of tools

Amazon

For quick stretching and remove the drilling tool; no keys needed. Higher elasticity, solid retaining ring, short design, less weight. Automatically nachspannen when drilling proportionally to the pull-out elasticity. So the maintenance of spann power even hard to use., Weight: 0.88 Pounds, Manufacturer: RÖHM