Sealey AK3015 32PC Tap & Die Set broken bolt removal 

Sealey Tap and Die Set 32pc Split Dies Metric M3-M12 Alloy Steel Thread Repair
Taps (Taper, Second, Plug) & Dies; 3 x 0.5, 4 x 0.7, 5 x 0.8, 6 x 1, 8 x 1.25, 10 x 1.5, 12 x 1.75mm,
M3 to M12 alloy steel tap and die set. Taps supplied in three types for each size, taper (starting), second tap (intermediate) and plug (bottoming); matched by equivalent sized dies. Provides all functions required for a professional engineer. Set includes tap wrench, steel die handle, screw pitch gauge and screwdriver. Supplied in a metal case.
Testing the taps on a motorcycle front fork broken M6 bolt

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