Threading Inserts - threading insert

Prices : All Prices are United States (US) Dollar ($)             Shipping : We ship from Michigan Warehouse across North America & Canada (Max cart weight 4.2lbs for Canada)

Cobalt drill bits are drill bits which contain a percentage of cobalt. The two most commom percentages are 5% (also known as M35 ) and 8% (known as M42 )

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If you are drilling metal, particularly harder metals such as stainless steel you will probably be advised to use M35 bits.

Professional installers, locksmiths and home improvers have been using our drill bits for drilling the hardest of metals.

The more cobalt a drill bit contains the harder the metal you will be able to drill however, the increase in cobalt has a downside in that it makes the drill bit more brittle.

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If you are using a hand drill then 5% cobalt bits are probably the best drill bits for you as they will certainly drill most hard metals you will encounter including stainless steel.

However if you are drilling in a very controlled fashion using a pedestal drill with variable speed controls and you are drilling a very difficult metal 8% may be a better option. However even under controlled drilling you will have the increased chance of breaking the bit.

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TTP HARD  drill bits are 5% cobalt throughout. This means they can be sharpened and will drill through hard metals including stainless steel.