1. Torch series
CK - Standard
TL - Trimline
FL - Flex-Loc
MT - Machine
2. Torch model number
3. Gas valve
4. Cable/hose length
5. Power cable type
R - one-piece
H - one-piece
2 - two-piece
N - two-piece
6. Super-Flex cable
7. Neck type
RG - Rigid
FX - Flex
Example torch:
CK17V-12-RSF RG - standard series, model 17, with gas valve, 12.5ft. one-piece power cable Super Flex, rigid neck
CK9-25-2 FX - standard series, model 9, 25ft., two-piece power cable, flex neck
Thread sizes for torch heads (collet body & back cap):
Models - 9, 20, 100, 110, 130, 200 and 230 - 5/16 - 24
Models - 17, 26, 18, 150, 210, 300 and 510 - 3/8 - 32