Left-handed helix at the tip of the tap makes chips flow forward, and out of the way, for faster, easier tapping of through holes. Creates less heat and less stress. Mfg: Reiff & Nestor Company SPECS: High-speed steel.
Reiff & Nestor Company Spiral Point "gun" Tap
$15.99
Easier, Faster Tapping Of Through Holes In Alumimum & Steel