Cimport SSPIN300 - SPIN Swaging Set: 6 Tools (1/4", 3/8", 1/2", 5/8", 3/4", 7/8"). Swaging SPIN Tools: Designed for the most common tubing diameters in HVAC, the SPIN Tools preserve copper's/aluminum's malleability while doing the swage, avoiding cracks and leakage. It allows connecting tubes with ease and without the use of fittings such as sleeves and unions, turning potential waste into actual profit. To top that, the SPIN Swaging Tools are able to make expansions in just 5 seconds. To perform the swage in copper/aluminum tubing, you only need to attach the correspondent SPIN Tool into a hand drill*. As they perform their job using high temperature, due friction, no clamping tools or holders are needed. No more struggling with the swaging tool. The drill makes the whole strength, not your hands! SPIN: the evolution of the swaging tools.