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Specifications

L 6-1/2"
W 6-1/2"
H 2-1/2"
C 5" ±0.0002"
SQUARE & PARALLEL 0.0002"
Weight (lb) 22

The B-5-SP 6-1/2" × 6-1/2" Sine Plate is a Master-Sine precision tool from Suburban Tool, engineered for accurate gage-block angle setups in grinding, inspection, and toolroom work. Made of steel hardened to Rc 58-60, it stands up to demanding daily shop use.

Its 1/4-20 tapped holes make workholding and fixturing straightforward, while the hardened, ground-and-lapped roll bar ensures reliable, repeatable positioning.

  • Steel construction hardened to Rc 58-60 for durability and wear resistance
  • 1/4-20 tapped holes for convenient part clamping and fixturing
  • Roll bar ground and lapped for straightness and roundness
  • Swivel block provides full-face contact with gage blocks, holding them securely
  • Exclusive internal locking device pulls the top plate down without distortion
  • Made in the USA by Suburban Tool
  • Side and back rail included.

Available with No Certification, Short Form, or Long Form Certification.

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