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Marples Trial 1 Rosewood 12" Try Square

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Marples Trial 1 Rosewood 12" Try Square T12


Handmade in Sheffield by Joseph Marples, this beautifully made double brass faced rosewood  12" try square has a hot blued steel blade secured with four brass diamond washers and steel rivets and is part of the Trial 1 range tools made to 70 year old designs.

Each square is tested for accuracy on both the inside and outside faces during manufacture and again before despatch. Marples own specification for the internal angle is twice that specified in the British Standard ie; better than 0.01mm/10mm blade length and with the solid brass edges - accuracy is ensured.

Carpenter's try squares are designed for squaring across sawn boards in preparation for sawing to length. Because the outcome can only be as good as the sawn surface that the stock is registered against, there is a limit to how much accuracy is relevant and this is reflected in the standard.

  • Inside blade length: 12”
  • Overall length: 14”
  • Stock length 8"
  • Conforms with British Standard 3322 specification for carpenters' squares and bevels.

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