1/4 x 19 GAS HSS hand tap set, is the right tool to create a thread, ride on an inner surface easily and quickly.
- to make the thread 1/4 X 19 GAS we need to drill a 11.8 mm drill
- length total 70 mm ,length 28 mm
- set of 2 pieces, in a plastic case
- the collazo can be used with the collage jelly or the collage rat.