ITEM NAME:0.3-3.6mm Universal Electronic Mini Metal Drill Chuck Collet Bit for Rotar HSV Descriptio n Features: Durable and practical Compatible with most of rotary tools used in hardware,hobby,home,etc Suitable for drill,electric grinding,hanging mill,hose above specifications: Diameter of Head:15mm/0.59'' Length of Shank:25mm/0.98'' Overall Length:45mm/0.66'' Shank: 6.35mm Hexagon Material: Carbon Steel Color:Silver Material: carbon steel Clamping Range:0.5-3.2mm Package include: 1 x Metal Drill Chucks Collet Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! 0.3-3.6MM Mini Mandrino Autoserrante Autobloccante Attacco Conico Adattatore New.Length of Shank:25mm/0.98". Shank: 6.35mm Hexagon. Material: Carbon Steel. Material: carbon steel. 0.3-3.6MM Mini Mandrino Autoserrante Autobloccante Attacco Conico Adattatore New. We'd like to settle any problem in a friendly manner.