The following listing includes all the tools and instruments of this category that are essential to good
gunsmithing and tool making. Some of these precision items are a bit on the expensive side when one
has to go out and buy them all at once.
Considering the years of good service they will render, if properly taken care of, one can scarcely
consider them as being costly.
MICROMETER
You will need a micrometer from zero to one inch, and one to two inches. They should be of a type so
you can read down to ten thousandth of an inch.
MICROMETER (DEPTH)
Most of these come equipped with three interchangeable rods giving a range of measurement from 0-
inch by thousandths of an inch.
MICROMETER (INSIDE AND OUTSIDE)
These should have a capacity of at least 6" and equipped to give a reading in thousandths.
GAUGES
Some of the gauges that will be needed are bore gauges for measuring the finished reamed bore of the
rifle barrel. There should be a gauge for each caliber that you make.
Each gauge should have a go and no go gauge on it. They can be turned out on a lathe. The no go
gauge should be .015 larger than the go gauge.
HEAD SPACE GAUGES
You will also need also head space gauges for each of the caliber's you chamber for.
ANGLE AND RADIUS GAUGE
Another of the gauges that you will need will be angle and radius gauges. These are not used to often,
but they do come in handy when you need them.
You will need a thread gauge, as in every barrel you pull you will have to know how many threads per
inch there is.