DRILLCO DRL209A140CB - 5/8-11 THREAD FORMING BOTTOM TAPBrand Drillco Product SKU 209A140CB Category Taps Size Fractional Material High Speed Steel Finish Coating Bright Pack Quantity 3 Size 5 8 Overall Length Flute Length Description Thread forming taps ? form? the thread rather than cut it which allows the thread to be created without producing any chips. Thread forming taps can run at faster operating rates than standard cut taps and generally have a longer tool life sometimes up to 5x longer in some