GROUND GLASS JOINT FORMER - 19mm MALE - HEAD ONLY

Male brass ground glass joint forming tool that will allow you to make a 19mm female joint. The machined lip on the rear of the tool automatically creates the correct length of joint, while at the same time initiates the roll that forms the reinforcing lip on a female glass joint. Machined to a standard 19mm taper.

SOLD HEAD ONLY - THREADED 1/4/20NC.