Questions tagged [bit]

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6
votes
2answers
91 views

What type of tool or bit is a metal shaft with splines?

I inherited a load of tools from my father. Among them was this bit. I have never seen one like it, and don't know its purpose. It has six straight splines set at an angle to the long axis of the bit ...
2
votes
0answers
54 views

Why does a Keyless chuck sometimes stick?

I noticed that Keyless chucks in cheap drills tend to become stuck often, but I've always wonder why does this happen. Is it due to overtightening the chuck? Are low quality drill bits a factor to ...
0
votes
3answers
81 views

What kind of bathroom tile is this, and what kind of drill bit does it require?

I believe ceramic and porcelain tiles are the most common, but this looks like it might be some kind of polished stone. Will a carbide bit work on this tile, or does it require a diamond-tipped bit?
0
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0answers
16 views

Treating/restoring steel for/after drilling

Specific example: my bicycle takes an allen wrench (hex key) that has a centre hole in it (for security purposes, a pin in the socket prevents a normal key from being used. So I made a spare by ...