5/16" - 18 Bottoming Tap, High Speed Steel - National Coarse Thread

Model #: TAB-5/16-18

Price: $2.90

Description: 5/16"-18 HS Bottoming Tap 0329-0046

• Thread Diameter: 5/16"
• Threads per Inch: 18
• High Speed Steel.
• Ground Thread.
• Recommended Drill Size: F

Bottoming taps have 1 to 1-1/2 threads of lead, for threading close to the bottom of a blind hole.
Please note that not all bottoming taps are flattened at the end.
Some manufacturers leave a point that you may have to grind off if going very close to the bottom of a hole.