Reverse spiral flutes grip harder as resistance increases for maximum grip power. IMPACT performance series bits don't just work with impact drivers. They are designed specifically for them and the higher torque they produce.
1-1/2-12 NF x 2.6" Hex Irwin Hanson 7275 Rethread Die Carbon Steel RH Irwin
12-24 12/24 NC Bottom Hand Tap Irwin Hanson Model 1232 ZR Carbon Steel 4FL USA
12-24 X 1" Hex Die Irwin 6432 Carbon Steel SAE USA RH Rethreading Hanson 12/24
12-32 NEF Bottom Hand Tap Irwin Hanson Model 1234 Carbon Stl RH USA 12/32 4 FL
12-28 Taper Tap NF Irwin 1033 Carbon Steel 4 FL USA 12/28 Hanson
7269 1-1/8-12 NF x 2" Irwin Hex Rethread Die Carbon Steel RH