TT82824 High Speed Steel Bottom Thread Semi Forming Tap #4-40 Thread X 0.5625" (9/16) Thread Length X 0.1410" Shank X 1.8750" (1-7/8) OAL H3 Limit Uncoated (Pack of 1)
Bottom - 2.5 Thread Chamfer for blind hole tapping
Lube grooves for lubrication and venting in blind holes
Thread forming taps have no flutes or cutting edges and provide chipless tapping
Description
Featuring lube grooves for lubrication and venting in blind holes, this selection of thread forming taps provides improved performance in a wide variety of materials, and is generally used in applications with lower cutting speeds, thread forming taps