Ali chequer plate milling

retneprac · Jul 16, 2018

Hi All

Not being a metal worker, can anyone advise on a suitable milling bit/gadget that would allow me to drill a hole and mill flat the immediate area around the hole so a bolt head can sit flat on the plate and not on the bars?

If it fits in a cordless drill even better.

Cheers.

retneprac · Jul 16, 2018

kind of like a mix of a stepdrill and fostner bit for metal!

Hicap phill · Jul 16, 2018

Use counter sunk bolts?
Allen keys to do up they are black or silver.
6mm bolt hole & 8or10 drill just to sink the head

retneprac · Jul 16, 2018

Cheers.

Done that on the back, now need to do the bar side for a washer and nut.

Kwakerman · Jul 16, 2018

retneprac said:
Hi All

Not being a metal worker, can anyone advise on a suitable milling bit/gadget that would allow me to drill a hole and mill flat the immediate area around the hole so a bolt head can sit flat on the plate and not on the bars?

If it fits in a cordless drill even better.

Cheers.

A spotface cutter is the correct tool for the job, however a counterbore will also do the same job with a bit of care. Basically counterbores come with a small pilot which keeps the cutter central

Kwakerman · Jul 16, 2018

Like this, just pick the size you need to suit the screws

retneprac · Jul 16, 2018

counterbore end miller, perfect, cheers.

Ali chequer plate milling

retneprac

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retneprac

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Hicap phill

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retneprac

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Kwakerman

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Kwakerman

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retneprac

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