3M 54110, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 1-1/2 in x NH A VFN, 7100075534, 200 per case 
Dynabrade 07109 Vane Set (5pk) 
Insize 4168-14E, STEEL STANDARD BALLS, 1/2″, 6940561981520
$20.19
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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