One-piece drill/tap design ensures proper hole size for threaded tap size
Quickly deburrs and countersinks threaded hole.
Greenlee Split point combination drill and tap bit is made from hardened high-speed steel for longer durability. It has high quality hex shank to ensure strong connection for drill chuck and has coarse type size of 1/4-20 thread. Bit is designed to tap up to 1/2 Inch mild steel, copper, brass and aluminum metals. It contains quick-change adaptor in standard length, long length, metric and standard kits. Bit has a shank size of 1/4 Inch and is ideal for hole drilling, tapping and deburring/countersinking applications. It includes back tapered beyond the tap to prevent thread damage from over-drilling.
|Catalog Description||1/4-20NC Combination Drill Tap Bits. Drill, Tap, and Countersink in one easy to use bit. Tap holes up to 4X's faster than traditional methods. One-piece Drill/Tap design ensures proper hole size for threaded tap size. Available kit and individual bits in 8-32NC, 10-32NF, and 1/4-20NC thread sizes. Constructed of hardened High Speed Steel. Long length Drill/Tap Bits tap up to 1/2" (12.7 mm) thick material. Split-tip drills fast and resists walking. Back tapered beyond tap to prevent thread damage. Quickly deburrs and counter sinks threaded hole. Fast, secure 1/4" Quick-Change hex shank. Quick-Change adapter included in Standard Length, Long Length, and Metric Drill/Tap Kits. For best results, use Greenlee cutting oil with all Drill/Tap bits.|
|Material||High Speed Steel|
|Point Type||Split-Tip drills fast and resists walking.|
|Threads Per Inch||20 TPI|