PHP33-CB09N-HS – 0.9mm, blue top, black ABS tip/for CB09US Blades Compatible with Blades:  CB09UB • CB09UB-K60   PHP33-CB15N-15 – 1.5mm, red top, black ABS tip/for CB15 Blades Compatible with Blades:  CB15UA • CB15UA-K30