We are proud to present the excellent Gemini_mall® 8Pcs 3-16mm Dia Woodworking Drill Bit Depth Stop Collars Ring Positioner Locator Durable. Everything £5 (or less!)
Designed to grip the entire diameter of your drill bit without screw ever touching the shaft
Used to accurately control the depth of the hole you are drilling
Hold securely in place where you put them
Sizes: 3mm 4mm 5mm 6mm 8mm 10mm 12mm 16mm.
Includes allen wrench