This IRWIN HANSON Tap and Drill Bit Set includes an HCS self-aligning plug tap and an HSS drill bit. The plug taps feature high-carbon steel construction and are great for general purpose threading, while the high-speed steel drill bits help ensure fast, precise drilling.
Drill and Tap Packs, include 10 - 24 Tap + No. 25 Drill. Black oxide finish on all high carbon steel Hanson taps with semi-porous matte surface that causes cutting oil to cling, carrying the oil into the cut more effectively, thus reducing the drive torque required and lowering cutting temperatures. Oxide surface-coating also reduces tendency for chips to weld to the Tap, resulting in lower cutting temperatures and freer chip flow to increase tool life. Irwin tools are made of only the finest materials, manufactured to exacting tolerances.