1 (a) Screw pitch gauge
(b) Radius gauge
(c) Feeler gauge
(d) Thickness gauge
2 Setting the valve clearance on an engine
Checking the end float of a machine spindle
Checking the amount of bend in a shaft
Setting the spark plug or points gap on an engine
4 Avoid impact forces on the blades
Avoid contact with moving machine parts
Clean and lubricate after use to avoid corrosion.
5 Radius gauges are used when grinding a radius form lathe tool
Radius gauges are used to check the radius being machined or filed on a workpiece
6 Working from left to right across the page - radius too big, radius too small, radius too small, radius too big.
7 1. Checking a part which has been form turned
2. Checking the shape of a form tool while it is being ground
3. Checking the shape of a moulded or cast component which cannot be measured with conventional tools
4. Checking the shape of a gear tooth which is being repaired
8 (a) Form is correct
(b) The left hand side of the tool has a radius
(c) The angle is too big
(d) The angle is too small
9 Clean after use
Lightly oil or wrap in oiled paper
Store in dry place
Store in case or box to protect from outside damage.
10 The tool should be immediately taken out of service and reported to a supervisor to be repaired or scrapped.