• Thread Size: 5/16"-18

• Set Includes: (1) Taper Tap, (1) Plug Tap, (1) Bottoming Tap

• High Speed Steel

• Use For Creating New Internal Threads

• Taper Taps Have A Chamfer Between 7 To 10 Threads, Commonly Called Starting Tap

• Plug Taps Have A Chamfer Between 3 To 5 Threads, Used As The Second Tap

• Bottoming Taps Are Made With Just Enough Chamfer For Starting In The Hole, Only 1 To 2 Threads, Also Know As A Finishing Tap

Warning this product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.