3/8" BSW High Speed Steel Bottoming Tap M10x25 ZP 10.9 We particularly recommend if you

We particularly recommend if you regularly experience demanding conditions where it can help combat the damage caused by frequent high engine stress: Nearly all engine technologies

Drill diameter 8

24oz Ball Pein Hammer

The second is our STREET/STRIP set-up

Facom Bit Torx 1/4" Hex Dr T27 x 25mm

3/8" BSW High Speed Steel Bottoming Tap M10x25 ZP 10.9 We particularly recommend if youFor producing precision threads by hand tapping, ideal for finishing blind holes General purpose use Suitable for materials up to 1000N mm2 Through & blind holes Suitable for both hand and machine operations Threads per inch 16 Overall length 80mm Cutting length 24mm Drill diameter 7. 9mm