Accurately Drilling a Hole

February 28, 2019 Nigel 0

Accurately drilling a hole can be a challenge even in a milling machine with all axes locked, apart from the quill movement. I start with a centre drill. The centre drill is short and so [more…]

Pinvice

December 30, 2017 Nigel 6

I have a number of small pinvices, but they tend to be rather crude and not very accurate. I also have a larger hand drill that is literally a small chuck attached to a steel [more…]

Twist Drill Basics

November 27, 2017 Nigel 0

The twist drill basics introduces the angles, clearances and how to get a drill to run straight. There are a number of different forms of twist drill, different base metals, different coatings and an even [more…]