3M 07394 Hookit Disc Pad, 178 mm x 25 mm M14-2.0 Internal, 7000045702 
3M 45179, Roloc Disc Pad TR, Medium 4 in 1/4-20 Internal, 7000045281 
Insize 4804-26E, RADIUS GAGE SET, .010″?.5″, 6928640330094
$73.91
Each piece has 3 concave and 2 convex gauging surfaces.
26 Leaves, accuracy +/- .002″ With Handle in Case
.010″ to .500″
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$200.31
$73.91
Each piece has 3 concave and 2 convex gauging surfaces.
26 Leaves, accuracy +/- .002″ With Handle in Case
.010″ to .500″