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.