i have forsale a kit to tap, and re thread your block if you have a stripped a thread out, its a proper kit, not some mickey mouse crap tool, comes with 23 heli coils in 11x1.25 thread, special tap, 11.1mm drill bit, special tool to inset coils, and puch, kit cost £90 but cheaper than buying a new block! used once, will take £70 delivered ono
dose not come with tap holder as pictured, was not in kit and borrowed from a freind