Trigger Lock with Instant Safety Release, Full Size Comfort Grip, 360║ Swivel Tip, Operates in Any Position, Even Upside Down. HT44TE TwisterĘ Swirl Combustion Tip End. Tubing Capacity: Propane: Soft Solder-up to 3" Silver Braze-up to 1". MAP//Pro¬ (Propylene): Soft Solder-up to 3.5" Silver Braze-up to 1-3/4". Tip replacement available.