3M 55597, Hookit Paper D/F Disc 236U, 6 in x NH 6 Holes P320 C-weight, 7000119588 
3M 77143, Scotch-Brite Hookit 7447 Pro Disc, PO-HA, A/O Very Fine, 6 in x NH 6 HL, 7010292688 
Insize 4701-1, ADJUSTABLE SQUARE, 6928640318351
$152.50
The straight edge can move and can be locked by the clamping screw.
Made of hardened stainless steel.
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$152.50
The straight edge can move and can be locked by the clamping screw.
Made of hardened stainless steel.