Grey case contains

Pipe threader for making thread on the outside of pipe NPT. The threader has one of the cutters in the ratchet holder

SO- 1/4" 18 NPT (18 threads per inch)

SO- 3/8" 18 NPT (18 threads per inch)

SO- 1/2" 14 NPT (14 threads per inch)

SO- 3/4" 14 NPT (14 threads per inch)

SO- 1" 11 1/2 NPT (11 1/2 threads per inch)

Pipe Cutter cut 1/8" to 2"

Pipe wrench 18"

2 sets of pipe clamps