3 Jewelers Bur Wire Gauge Ruler Beading Measuring Tool Wire & Sheet Gauge This is a new wire and sheet gauge Used for measuring wires from 0 to 36 gauge It is made of heavy gauge, hardened and tempered tool steel and is chrome finished Comes with a chart of decimal equivalents of each size It measures approximately 3 3/4" (165 mm) in diameter Bur Gauge This is new bur gauge This is used to measure the size of burs The hole sizes are: 005, 006, 007, 008, 009, 010, 012, 014, 016, 018, 021, 023, 025, 027, 029, 031, 033, 035, 037, 040, 042, 045 The gauge measures approximately 3 3/4" x 1" Centimeters & Inches Ruler This is a new stainless steel ruler Measures in centimeters and inches Graduated in 1 mm and 1/32" increments It measures up to 15 cm and 6" Newer versions of the item shown may be shipped, as a result, there may be a slight variation in color and design.