Easily identify drill sizes with this hand fractional drill gauge. Simply find the smallest hole your drill with fit in and read off the size. Permanent laser etched graduations will not rub off. Tempered Stainless Steel Construction. Identifies sizes; 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm & 13mm. Ideal for sorting drills or for checking sizes before drilling.