40PC Tap and Die Set Tap and Split Dies -Essential Threading Tool with Case Backdraft Damper it can be used for

it can be used for connecting pipe fittings and switching 1/4 turn by on/off switch

anti-suckback mechanism and thermal overload protection

It is soft and does not hinder the growth of seeds or seedlings

Recover and recondense butane at OVER 18 GPH (gallons per hour)

Whether it is a liquid or solid

40PC Tap and Die Set Tap and Split Dies -Essential Threading Tool with Case Backdraft Damper it can be used for[FULL SIZE KIT]: (17) Taps; (17) Dies; (1) Long Handle Adjustable Tap Wrench; (1) T Handle Tap Wrench; (1) Adjustable Die Wrench; (1) Mini 1 8 Flat Screwdriver; (1) Thread Pitch Gauge; (1) Heavy Duty Storage Case; [Tap and Die Sizes]: Coarse Thread(mm): 3 x 0. 5, 3 x 0. 6, 4 x 0. 7, 4 x 0. 75, 5 x 0. 8, 5 x 0. 9, 6 x 1. 0, 7 x 1. 0, 8 x 1. 25, 10 x 1. 5, 12 x 1. 75; Fine Thread(mm): 6 x 0. 75, 7 x 0. 75, 8 x 1. 0, 10 x 1. 25, 12 x 1. 5; Pipe Thread