Specialist
1/2 Red. Shank Drill-59/64
Stock Code :
BORD2651-59-64
Tools & Gear Drills Specialist
BORDO REDUCED SHANK HSS DRILLS 118 deg; notched point 30 deg; helix DRILL BIT SURFACE TREATMENT Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering - a thermal process resulting in a porous tool coating. This surface aids chip flow and heat dissipation. The drill is then ground a second time to achieve a bright finish on the shank and cutting edges.
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