Lesson 4/Learning Event
The blades of fillet and radius gages are made of hard rolled steel.
Double-ended blades, Figure 53, Part A, have a lock which holds the blades
in position. Inside and outside measurements are made with the same blade.
The other gage, Figure 53, Part B, has separate blades for inside and
Each blade of each gage is marked in sixty-fourth.
Gage A, Figure 53, has a range of sizes from 17/64 to 1/2 inch.
Figure 53, ranges in size from 1/32 to 17/64 inch. Each gage has 16 blades.
FILLET AND RADIUS GAGES (PARTS A AND B)
Drill point gages, Figure 54, consist of a 6-inch hook rule with a 59-degree
sliding head that slides up and down the rule.
The sliding head can be
locked at any position on the rule. The sliding head is graduated in 1/32
DRILL POINT GAGE