• Large and small circle, double-pinion system to draw accurately with a special alloy rolled material

Using a special alloy rolled material, the surface of the body is nickel plated satin finish environmentally friendly. I adopt (PAT.No.700461) The center stabilizer double pinion with Delrin resin Uchida drawing instrument of their own. This pattern center / driver core input (2.0mm) / (0.5mm) PS replacement spring compass pencil Stainless steel coracoid replacement compass replacement ear (large) ruling pen / pencil divider large ears (Knock) Attachment L type (0.5mm) protractor 12cm / character erasing plate / cloth SE large case (external dimensions: 278 x 143 x 24mm)

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