3M 05182, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1/2 in x 1 in, 7100050403,Box of 4 
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust 
Insize 4168-17E, STEEL STANDARD BALLS, 19/32″, 6940561981551
$19.76
To measure angle and diameter of taper holes
Material: tool steel
Hardness: HRC63
Diameter accuracy:?.00012?
Roundness .00004″
Supplied with manufacturer inspection certificate.
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