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70022022
Specification: Size (inside diameter) : 3,4,5,6,8,10mm Material: stainless steel Weight: 48 g / 1.7 oz(approx.) Package list: 6 * spacing ring 2* hex wrench
✿ Made of Stainless steel material, in use. Suit for high carbon steel drills, and positively locks anywhere along the bit.
✿ The depth stop collar fits for high carbon steel Drills,and positively locks anywhere along the bit. As Drill Limited ring, clamping device, positioner.
✿ There are 2pcs small L-shape hex wrench, so you can use conveniently to adjust the drill stops, practical and convenient.
✿ Drill depth stop bit can be used for drilling limit, and prevent drilling too deep. Screw type collar will not damage bits.
✿ You are welcome to us if you have any problem about our product, we will give you a satisfactory reply.