Round Head Protractor Cum Depth Gauge

Big Horn 19210 is a versatile tool that allows the angle and depth to be measured simultaneously. The rule is graduated in both imperial and metric dimensions up to 150mm / 6-inch and a knurled thumbnut allows the rule to be locked at the chosen angle. The protractor features deep etched graduations of 0 - 180Degree in opposite directions permitting the reading of both the direct and supplement angles. Features: Made from polished stainless steel Graduated from 0 - 180Degree Spring tension nut to secure rule to desired depth and angle Narrow 150 mm / 6-inch rule graduated 64 on one side and 0.5 mm at reverse Specifications: Blade Length: 150mm 6-inch Graduations: 0.5mm or 64ths inch.