3M 20908, PSA Cloth Disc 348D, P100 X-weight, 2 in x NH, Die 200P, 7000118874 
3M 10118, Synthetic Steel Wool Pads, 10118NA, #0 Fine, 7000126148 
Insize 4168-4E, STEEL STANDARD BALLS, 3/16″, 6940561981421
$12.04
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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