Squareness of both V grooves to front and back sides: 197_in
Hold cylindrical workpieces for inspection and machining.
Two V-blocks per set.
Made of alloy steel.
Hardened to HRC60?2.
V groove on the top for large shafts.
V groove on the bottom for small shafts (except 6896-10).

3M 11837, 3M Cubitron 3 Flap Disc 1169F, 60+, T29-Conical Quick Change, 4-1/2 in x 5/8 in-11, 10 ea/Case, 7100380349
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686
3M 85322, Aluminum Foil Tape 425, Silver, 25 mm x 55 m, 4.6 mil, 7100059421
3M 28473, Roloc D/F Cool Running Disc Pad TR, 4 in x 5/8-11 Internal, FIN, 7000144107 