6pcs 3-10mm Drill Depth Stop Bit Collar Set Drilling Limit Stainless Steel Ring
- As Drill Limited ring, clamping device, positioner.
- Suit For: High Carbon Steel Drills,and positively locks anywhere along the bit.
- Made of Stainless steel material, durable in use
- Used for drilling limit, and prevent drilling too deep
- Screw type collar will not damage bits.
