Standard Abrasives 41460, Aluminum Oxide Overlap Disc, 715803, 120 Grit, 1 in x 8-32 x 2 Ply, 7100092203 
3M 06524, Scotch Steel Gray Masking Paper, 06524, 24 in x 1000 ft, 1 per case, 7000045442 
Insize 4168-7E, STEEL STANDARD BALLS, 9/32″, 6940561981452
$13.59
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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