• Thread Size: 1/2"-20

• Overall Length: 3-3/8"

• Flute Length: 1-21/32"

• Flutes: 4

• High Speed Steel

• Bottoming Taps Are Made With Just Enough Chamfer For Starting In The Hole, Only 1 To 2 Threads

• Designed To Thread Blind Holes To The Bottom

• 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.