• MAGNA-SINE sine plates are equipped with extremely powerful ceramic magnet chucks. Dual magnet packs provide 100 lbs. average per square inch holding power, nearly twice as much as a standard chuck!
• Chucks have "major and minor" poles that focus the magnetic flux at the top plate. This means more concentrated, effective holding power for thick OR thin parts and less magnetization of spindles, tables, ways and other neighboring components.
• Swivel block provides full face contact with gage blocks keeping them securely in place.
• The roll bar is made from hardened steel, ground and lapped for straightness and roundness.
• Exclusive locking device inside the hinge roll provides a positive lock with an expanding action. Both screws lock toward the front of the unit, pulling the top plate down on the set-up gage blocks without distortion. Hinge is made from hardened steel, ground and lapped.
• Angular accuracy of set-ups is guaranteed to be within 5 seconds of arc up to 15°, 10 seconds up to 30° and 15 seconds up to 45°.
• Side and back rail included.

4" x 4" x 3-1/2"
6-1/2" x 6-1/2" x 3-7/8"
6" x 12" x 4-1/2"
6" x 18-1/4" x 5"