3M 00831, Scotch-Brite Cut and Polish Disc, CP-DC, A/O Medium, 8 in x 1/2 in, 7100141898 
3M 13627, 947, Hookit Disc Pad Holder, 7 in x 1 in x 5/8 in 5/8-11 Internal, 7000028353 
Insize 7352-E1000, LONG HANDLE, 6928640357206
$1,341.31
To assist deep-hole measurement.
Can be used for bore gages 2422, 2428, 2423 and 2424
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