8pcs 3-16MM Drill Bit Shaft Depth Stop Collars Ring Set Wood Drills

Description:
8pcs Drill Bit Shaft Depth Stop Collars Ring Set 3-16MM Woodworking Drills

Features:
8pcs  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.

Specification:
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(notice :without drill bit)
1 x wrench