Thread Repair Kits

What are thread repair kits?

We offer a range of thread repair kits, tools and inserts. These products are used to repair warn or broken threads on anything from a machine bed to an engine manifold.

How do they work?

Using a simple method of first drilling out the previous thread, tapping the hole with the tapping tool, then screw in the threaded insert using the insert tool and finally break off the tangs.


What are the key features?

• Repairs stripped or damaged internal threads
• Different kits available to repairs threads from M2.5 to M20
• No engineering experience needed
• Protects tapped threads against wear and tear

What different types are there?

• Wire threaded inserts
• Tapping tool and drill bits

Which application would you use it?

• Electrical & Industrial Servicing
• Automotive
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Part Details Brand Thread Size Range Number of Pieces Set Contents
Recoil 18 piece M6 x 1 Thread Repair Kit Recoil M6 x 1 18 M6 Inserts (x15); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
Recoil 18 piece M4 x 0.7 Thread Repair Kit Recoil M4 x 0.7 18 M4 Inserts (x15); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
Recoil 18 piece M8-1.25 Thread Repair Kit Recoil M8-1.25 18 M8 Inserts (x15); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
RS PRO 20 piece M5 → M12 Thread Repair Kit RS Pro M5 → M12 20 HSS Drills 5 Pieces: 5.2; 6.2; 8.3; 10.3; 12.4 mm, HSS STI Tap 5 Pieces: M5; M6; M8; M10; M12, Installation Mandrel 5 Pieces, Tang Break-Off Tool 5 Pieces, Thread Inserts 1.0D-1.5D-2.0D from M5 → M12
RS PRO 9 piece M3 Thread Repair Kit RS Pro M3 9 3.1 mm HSS Drill Piece, M3x 0.5 HSS STI Tap
Recoil 18 piece M5 x 0.8 Thread Repair Kit Recoil M5 x 0.8 18 M5 Inserts (x15); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
Recoil 18 piece M10 x 1.5 Thread Repair Kit Recoil M10 x 1.5 18 M10 Inserts (x10); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
Recoil 18 piece M3 x 0.5 Thread Repair Kit Recoil M3 x 0.5 18 M3 Inserts (x15); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
Recoil 13 piece M12 x 1.75 Thread Repair Kit Recoil M12 x 1.75 13 M12 Inserts (x10); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
METRIC THREAD REPAIR KIT,M4-M10 5pcs RS Pro M4 to M10 - -
RS PRO 13 piece M12 Thread Repair Kit RS Pro M12 13 12.4mm HSS Drill Piece, Installation Mandrel, M12 x 1.75 HSS STI Tap, Tang Break-Off Tool, Thread Inserts: 3 each of 1.0D; 1.5D; 2.0D
RS PRO 19 piece M2.5 Thread Repair Kit RS Pro M2.5 19 2.6mm HSS Drill Piece, Installation Mandrel, M2.5 x 0.45 HSS STI Tap, Tang Break-Off Tool, Thread Inserts: 5 each of 1.0D; 1.5D; 2.0D
RS PRO 19 piece M6 Thread Repair Kit RS Pro M6 19 6.2mm HSS Drill Piece, Installation Mandrel, M6 x 1.0 HSS STI Tap, Tang Break-Off Tool, Thread Inserts: 5 each of 1.0D; 1.5D; 2.0D
Recoil 13 piece M12 x 1.5 Thread Repair Kit Recoil M12 x 1.5 13 M12 Inserts (x10); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
Böllhoff 230 piece M5 → M12 Thread Repair Kit Böllhoff M5 → M12 230 Inserts: M5 x 5 mm (x20); M5 x 7.5 mm (x20); M5 x 10 mm (x20); M6 x 6 mm (x20); M6 x 9 mm (x20); M6 x 12 mm (x20); M8 x 8 mm (x10); M8 x 12 mm (x10); M8 x 16 mm (x10); M10 x 10 mm (x10); M10 x 15 mm (x10); M10 x 20 mm (x10); M12 x 12 mm (x10); M12 x 18 mm (x10); M12 x 24 mm (x10); Twist Drills; HSS Hand Tap; Installation Mandrel; Tang Break-off Tool
RS PRO 19 piece M10 Thread Repair Kit RS Pro M10 19 10.3mm HSS Drill Piece, Installation Mandrel, M10 x 1.5 HSS STI Tap, Tang Break-Off Tool, Thread Inserts: 5 each of 1.0D; 1.5D; 2.0D
RS PRO 19 piece Thread Repair Kit RS Pro - 19 4.1mm HSS Drill Piece, Installation Mandrel, M4 x 0.7 HSS STI Tap, Tang Break-Off Tool, Thread Inserts: 5 each of 1.0D; 1.5D; 2.0D
Böllhoff 64 piece M4 x 0.7 Thread Repair Kit Böllhoff M4 x 0.7 64 Inserts: M4 x 4 mm (x20); M4 x 6 mm (x20); M4 x 8 mm (x20); Twist Drill; HSS Hand Tap; Installation Mandrel; Tang Break-off Tool
Recoil 18 piece 3/8-16 Thread Repair Kit Recoil 3/8-16 18 3/8 in UNC Inserts (x15); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
Recoil 18 piece 5/16-18 Thread Repair Kit Recoil 5/16-18 18 5/16 in UNC Inserts (x15); Magnetic Tang Break Tool; Combo Tap and Installation Tool; Drill
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