drill bits & sets
irwin unibit 585 10313 unibit 13 1 1 8 inch step drill
new speedpoint tip provides 6x faster initial penetration time than before and eliminates the need for center punching single fluted cutting edge assures true round holes and allows greater control with less vibration ideal for drilling holes in thin materials such as mild steel copper brass aluminum plexiglass wood and laminates sku orsno4633
irwin unibit