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Starrett® 50A 50 Series Improved Trammel Head, For Use With 3/4 in W x 3/8 in THK Beam, Hardened Forged Steel

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Features

  • Direct reading 0 - 180 deg in opposite directions, permitting the direct reading of angles and supplementary angles
  • Reversible, there is a shoulder on both sides of blade, allowing the tool to be reversed so the same angle can be scribed or measured left and right
  • Reversible lock bolt allows choice of which graduated side of the blade faces the operator
  • Tempered steel blades with accurate, machine-divided graduations
  • A spirit level indicates when the base reference surface is level a feature not usually available on comparable protractors
  • The points screw into the heads
  • The heads are die cast with black wrinkle finish and have hardened, forged steel divider points
  • The heads will accommodate a beam upto 3/8 in THK and 3/4 in W
  • Has an adjustable point

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Description

Starrett® Improved Trammel Head, Series: 50 Series, For Use With: 3/4 in W x 3/8 in THK Beam, Hardened Forged Steel, Black Wrinkle