Thread: Drill sizing

Cookie48,

Relax mate lets face it there are umpteen charts on Google relax and live in the world as it is led by England, Europe and America each with their standard measurements.

Most companies check them out here and abroad have done the hard yards follow their instructions to make the various pens. You can still buy both metric and Imperial drills easily, same as bearings, drive belts etc. No probs have success. Only true thing is if you REALLY want accuracy measure every drill you buy apart from pen work I do.I mark the baggie and keep them this way before I drill I check again.

Kind regards Peter.

try this
https://www.woodworkforums.com/f69/me...perial-123398/
regards michael

For pen making precision is not really critical as you are drilling various mediums from wood to bone plastics and stone ,I got a metric and an imperial drill gauge off Ebay ( a plate with drilled holes that are stamped with the various sizes, I simply take the tube and fit it in the nearest size hole with some clearance for gluing .it's only when you go over the 1/2 " or 13 mm that the gauges don't cover and you may need to measure ,in practice only some of the larger pens and high end kits get this big ,sometimes you can drill the right size and the wood will shrink and be tight ,a few rubs with a rat tail rasp or file will usually give you enough clearance for glue . Cheers ~ John

here's the one i use, its online

its got wire, letter, number, imperial (fractional and decimal) and metric.

hope its a help. and hope its ok to link it here for you.

Drill Size Conversion Table

Neal.