HSS Drill Bit Stepped 13MM Shank Bits Drills. 1 x High Speed Steel Drill Bit with a 13mm Reduced Shank. 13.5mm,14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 17.5mm, 18mm, 18.5mm 19mm, 19.5mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm & 26mm.
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