: *Precise positioning and convenient punching *Drill sleeves can solve the problem of drifting and shaking of the drill bit during the drilling process, making the punched holes more accurate, and at the same time saving effort and worry *A variety of specifications are available to meet the drilling needs of different drill bits Specification : Material: Carbon Steel Size: 3/4/5/6/7/8/9/10mm Color:as picture show Apply: For Woodworking Drill Quantity: 1PC 1cm=10mm=0.39inch. Package list: 1 * Three-in- locator Note : 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.