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.

Color: As picture shows
Sizes: 3mm 4mm 5mm 6mm 8mm 10mm 12mm 16mm
Quantity: 8pcs per set

Package included:
8pcs stop collar
1pcs hex wrench