Drilling depth stops, 9 depth stop collars, positioning ring, 3-16 mm

1, Various Sizes 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm and 16mm drill depth stops will fit drill bits of different sizes. 2,Carbon Steel MaterialDepth Stopper Drill Bit Made of high quality carbon steel, the surface is blackened, rust and corrosion resistant, high hardness, not easy to wear and deform . 3,Depth stopperThe collar is mainly used to fix the ultimate drilling depth on the drill bit and precisely control the drilling depth.Fixed securely to the position where they are placed, the collar screw will not damage the bit. 4,Easy to UseJust choose the appropriate size bit and stop collar, slide the collar over the bit and adjust the required depth using a ruler or depth gauge, then tighten the collar screw on the bit.