Hole cutting tools
RUKO drill/tap combination bits provide uninterrupted hole drilling, thread tapping and deburring in one bit. The high-speed steel bits are relief-ground and designed with ¼-inch hexagonal shanks for use with mild steel up to 12.75 mm thick. Drill/tap combination bits are available in standard sizes ranging from 6-32 to ¼-20 and metric sizes ranging from M3 to M10. Additionally, high-speed steel fractional and metric thread hand taps have been added. Fractional size hand taps are available ranging in sizes ranging from 8-32 UNC to 5/16-24 UNF; metric hand taps are available in sizes ranging from M3 to M30; hand tap kits are available in 15-piece kits.