USED BUT SHOWS LITTLE SIGNS OF WEAR (SEE PHOTOS). PERFECT FOR REGRINDING AND SAVING MONEY. Screw Machine Length Drill Bits; Series/List: R457; Drill Bit Size (mm): 10.72; Drill Bit Size (Decimal Inch): 0.4219; Drill Bit Size (Inch): 27/64; Drill Bit Material: Solid Carbide; Drill Bit Finish/Coating: TiAlN Series/List R457 Drill Bit Size (mm) 10.72 Drill Bit Size (Decimal Inch) 0.4219 Dri
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