3M 10115, Synthetic Steel Wool Pads, #3 Coarse, 7000051986 
3M 87429, Final Finishing Pads 10199NA4PK, 3 3/4 in x 6 in x 5/8 in, Replaces 0000 Steel Wool, 7100096075, 4 pads per pack 
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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