HSS M42 (8% Cobalt) Rectangular Toolbits Imperial Sizes
Rennie Tool Company (the)Made in the UK
£19.94
All The Toolbits We Supply Are Manufactured In The UK Rectangular toolbits are supplied with square ends Rectangular Toolbits are made to h12 tolerance M42 high speed steel is a cobalt molybdenum grade with a high hardness and superior hot hardness offering excellent cutting performance and excellent wear resistance. These 8% cobalt high speed steel type M42 tool bits are suited for tougher materi
Rennie Tool Company (the)'s own words, read from their page.
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