Connects to P4-CA3, P4-CA3180, P4-NM-250B and P4-NM-250D. Acetylene 3 seat Cutting Tip Size 0 - Cutting thickness 5mm Acetylene 3 seat Cutting Tip Size 0 - Cutting thickness 5-10mm Acetylene 3 seat Cutting Tip Size 1 - Cutting thickness 10-15mm Acetylene 3 seat Cutting Tip Size 2 - Cutting thickness 15-30mm Acetylene 3 seat Cutting Tip Size 3 - Cutting thickness 30-40mm Acetylene 3 seat Cutting Tip Size 4 - Cutting thickness 40-50mm Acetylene 3 seat Cutting Tip Size 5 - Cutting thickness 50-100mm