4Flutes M3-M16 1/5/7PCS HSS Counterbore End Mill Pilot Slotting Tool for Milling. Type: Core Drill bit. 1pc HSS core drill bit. You might also like. You may also like. Diagonal Coarse Anti Slip Knurling Wheel 0.5/0.6/0.8/1.0/1.2/1.5/1.6/1.8/2.0mm.
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