Marples Trial 1 Rosewood Mitre Square T15 10"

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Handmade in Sheffield by Joseph Marples, this beautifully made Trial 1 10" Mitre square is based on designs from over 70 years ago.

All Marples try squares are manufactured to BS3322. Each square is tested for accuracy twice during manufacture and again immediately prior to despatch to us. The squares are tested on both the inside and outside faces, our specification for the internal angle is twice as accurate as that specified in the British Standard, an accuracy better than 0.01mm/10mm blade length.

The chemically blackened spring steel blade has a working length of 10", is secured to the rosewood stock with four brass diamond and steel rivets with double brass edges.

  • Blade length 10"
  • Inside blade length 6"
  • Overall length 12"
  • Stock length 5 ½"
  • Conforms with British Standard 3322 specification for carpenters' squares and bevels