3M 28443, Disc Pad Face Plate Ribbed 28443, 4-1/2 in Extra Hard Red, 7000045279 
Insize 6892-1, MAGNETIC INDUCTION V-BLOCK, 4.3×2.4×1.9″, 6928640320675
$90.54
Hold cylindrical workpieces for inspection and machining.
To be used on magnetic chucks.
Supplied in single piece.
V groove on the top for large shafts.
V groove on the bottom for small shafts.
Hardness HRB70
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