Pair this 8-jaw kit with the RLS 19 kN Press Tool to create a full, ready-to-go setup for pressing copper tubing up to 1-3/8?. This comprehensive set includes the most commonly used sizes: 1/4?, 3/8?, 1/2?, 5/8?, 3/4?, 7/8, 1-1/8?, and 1-3/8?ógiving HVAC/R pros the versatility to handle everything from residential service calls to light commercial installs.