25 degree Helix provides proper cutting action for both drlling and tapping.
118 degree self-centering helical point eliminates the need for center punching or center drilling.
Reduces the thrust required. H-2 pitch diameter for 4-40 NC, all other are H-3
WARNING: This Product Can Expose You To Materials And/Or Chemicals Which Are Known To The State Of California To Cause Cancer And/Or Reproductive Harm.