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drills

Know the drill

There are so many varieties of building and engineering materials available these days it is likely that you will need a variety of drill bits in your workshop.
There are always a number of holes required to complete your projects at work, or more importantly those underway in the shed. We are going to cover some of the common products that are readily available from most DIY hardware stores and industrial suppliers, and also some items that you may have to ask for, or even
visit a specialist cutting tool supplier like Trade Tools to find.

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Different Tusks for different tasks

Tusk offers three ranges of drills made from different grades of high-speed steel. Tusks metal drill bits are made from M2 high-speed steel with a titanium nitride (TiN) coating. The 135-degree point offers faster drilling, lower feed pressure and they have a split point or self-centering tip.

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How to fix that wavering drill

First we checked to make sure that the there was in fact some play in the quill and indeed the dial gauge showed run-out of over 0.5 mm, quite a significant amount of wobble. I felt vindicated and quietly pleased that I hadn’t dragged Russell away from oiling and balancing the wheels of industry on false pretences.

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Sharpen up your drills

Back when I was sharpening drills as part of my punishment, I discovered there were slow spiral and straight-fluted drills for brass and plastic. You may need a straight-fluted drill. You can create this by “backing off” the first 3 or 4 mm of a spiral-fluted drill.

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