Raptor Supplies offers a wide range of thread insert kits for helical, BSF, solid and master threads from brands like Chrislynn, Powercoil and Helicoil. These kits are used for repairing stripped-off threads, installing a new threaded insert in an assembly and adjusting hand / pneumatic tools for different-sized threaded holes. The kits include standard / helical threaded inserts, and selected repair kits also come with an installation tool, a tap and drill bits in a wide range of drill sizes. Helical thread repair kits are ideal for use with softer materials like magnesium, wood, reinforced plastics and aluminium, and comprise tanged / tangless free running threaded inserts, a screw thread insert (STI) tap to create grooves, a mandrel for installing the insert and a tang break-off tool for the tanged inserts. These inch / metric / pipe threaded inserts are available in stainless steel, steel and carbon steel and extensively used for gripping screws, studs and bolts in automotive and aviation industries.