What it’s used for:
Cutting external threads on metal pipes so you can screw on fittings. Used for plumbing, gas, water, and air pipe work.
What’s in this red case:
1. Ratchet threader handle - the red + black T-handle. This gives you leverage to turn
2. Die heads - 4 different sizes in this set. From the markings I can see:
• 1" BSPT
• 3/4" BSPT
• 1/2" BSPT
• And one larger die on the red holder, looks like 2" or 1-1/4"
3. Extension bar - the long black pipe for extra torque