ITEM NAME:8Pcs 3-16mm Woodworking Drill Bit Depth Stop Collars Ring Positioner MO *** Description *** 8pcs Depth Stop Collars Woodworking Split Ring Set 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. Set Screw type collar will not damage bits. Positively locks anywhere along the bit. Hardened and Tempered. High Carbon Steel Drills..Drill Limited ring, clamping device, positioner. 8pcs Depth Stop Collars Woodworking Split Ring Set. Sizes : 3mm 4mm 5mm 6mm 8mm 10mm 12mm 16mm. 8-PC Drill Bit Depth Stop Collar. Drill Bit Depth Stop Collar.