Insize Combination Square Set Open Type Protractor: 12" Range - 2274-4

Insize Combination Square Set Open Type Protractor: 12" Range - 2274-4

• Center head (made of cast iron):to locate center of cylinders with diameter (Ød): 30-100mm accuracy: ±0.15mm
• Protractor head (made of cast iron): set the blade at desired angle to an edge of a workpiece, and can be used to measure angles range: 0-180° accuracy: ±20min
• Square head (made of cast iron): set the blade at 90° or 45° to an edge of a workpiece accuracy: ±8min for 90° square, ±10min for 45° square
• Blade (made of stainless steel): range: 300mm/12″, graduation: 0.5mm and 1/32″ on front face, 1mm and 1/64″ on back face