8Pcs/Set Woodworking Drill Bit Depth Stop Collars Ring Positioner Locator

8Pcs/Set Woodworking Drill Bit Depth Stop Collars Ring Positioner Drill Features: Brand new and high quality. 8-PC Drill Bit Depth Stop Collar. Drill Bit Depth Stop Collar. Drill Limited ring clamping device positioner. Works with both standard and brad-point bits. Setscrew type collar will not damage bits. Positively locks anywhere along the bit. Hardened and Tampered. High Carbon Steel Drills. Sizes:3mm 4mm 5mm 6mm 8mm 10mm 12mm 16mm. Package Included: 8 x Drill Bit Depth Stop Collar 1 x Hex Wrench