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The Irwin HSS Pro Drill Bit manufactured from high quality HSS steel. They have precision ground cutting edges for fast drilling and perfect finishing, a ground flute for maximum accuracy and fast chip removal and a universal 118º point shape for drilling a wide selection of materials. Manufactured to DIN 338 standards.Irwin HSS Pro Drill Bit. Size 10.0 x 133mm.PVC Tube.Additional Information:• Tip Diameter (mm): 10• Working Length (mm): 87• Overall Length (mm): 133• Pack Qty.: 1