Comparison : Item # 270-11011, #4 Tacking Tip (no rod used)
Item # 270-11012, #5 Round Tip (any size rod may be used)
Item # 270-11014, #6G Strip Feeder Tip for flat flexible PVC strips
Item # 270-11018, #10 Round Automatic Speed Tip (wide body) for 3/16”
Item # 270-11019, #11 Triangular Automatic Speed Tip for 1/8” & 5/32”