3M 64799, Scotch-Brite EXL Unitized Mounted Point, B121 x 1/8 in 8A CRS, 3M 7010329841 
Standard Abrasives 711436, A/O Tapered Cone Point, C-30 60, 7100151144, 100 per case 
Insize 4168-15E, STEEL STANDARD BALLS, 17/32″, 6940561981537
$20.28
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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