Drill Size - Inches - Size (mm) |
50 / 0.0700 in. / 1.7780mm, 51 / 0.0670 in. / 1.7018mm, 52 / 0.0635 in. / 1.6129mm, 53 / 0.0595 in. / 1.5113mm, 54 / 0.0550 in. / 1.3970mm, 55 / 0.0520 in. / 1.3208mm, 56 / 0.0465 in. / 1.1811mm, 57 / 0.0430 in. / 1.0922mm, 58 / 0.0420 in. / 1.0668mm, 59 / 0.0410 in. / 1.0414mm, 60 / 0.0400 in. / 1.0160mm, 61 / 0.0390 in. / 0.9906mm, 62 / 0.0380 in. / 0.9652mm, 63 / 0.0370 in. / 0.9398mm, 64 / 0.0360 in. / 0.9144mm, 65 / 0.0350 in. / 0.8890mm, 66 / 0.0330 in. / 0.8382mm, 67 / 0.0320 in. / 0.8128mm, 68 / 0.0310 in. / 0.7874mm, 69 / 0.0292 in. / 0.7419mm, 70 / 0.0280 in. / 0.7112mm, 71 / 0.0260 in. / 0.6604mm, 72 / 0.0250 in. / 0.6350mm, 73 / 0.0240 in. / 0.6096mm, 74 / 0.0225 in. / 0.5715mm, 75 / 0.0210 in. / 0.5334mm, 76 / 0.0200 in. / 0.5080mm, 77 / 0.0180 in. / 0.4572mm, 78 / 0.0160 in. / 0.4064mm, 79 / 0.0145 in. / 0.3683mm, 80 / 0.0135 in. / 0.3429mm
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