Four Slot Four Blade Woodworking Drill Open Hole Reaming Bit
Made of high quality alloy, large hardness, durable and reliable to use
Optional Size: 10mm, 12mm, 14mm, 16mm, 20mm, 22mm , 25mm,32mm (Approx.)
Length: 165mm (Approx.)
Has its own self-tapping thread for better positioning and punching
High quenching cutting edge, four-groove chip removal, helping to improve work efficiency