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Diamond Twist Drills Assortment Set of 20 Sizes 61 - 80

Twist drill set
Your Price: $16.49
Item Number: 28.0526

These drills are made with a straight shank and a twisting bit. They are made of high quality steel with diamond coating for precise drilling. Used for drilling stone, glass, ceramic, and other hard non-metallic surfaces. The set includes 20 drills, the one drill of each size from 61-80 and they come in a handy plastic container. Always use a lubricant or water when using diamond coated drills.

  • Drill assortment kit offers 20 drills in plastic storage case with sizes clearly labeled
  • Sizes included (#61-80): .0390" – .0135" inches or .990 - .343mm
  • Made of high speed steel with electroplated diamond particle coating


Drill# Inches MM   Drill # Inches MM   Drill # Inches MM   Drill # Inches MM   Drill # Inches MM
30 .1285 3.264   41 .0960 2.438   52 .0635 1.613   63 .0370 0.940   74 .0225 0.572
31 .1200 3.048   42 .0935 2.378   53 .0595 1.512   64 .0360 0.914   75 .0210 0.533
32 .1160 2.946   43 .0890 2.261   54 .0550 1.397   65 .0350 0.889   76 .0200 0.508
33 .1130 2.870   44 .0860 2.184   55 .0520 1.321   66 .0330 0.838   77 .0180 0.457
34 .1110 2.819   45 .0820 2.083   56 .0465 1.181   67 .0320 0.813   78 .0160 0.406
35 .1100 2.794   46 .0810 2.057   57 .0430 1.092   68 .0310 0.787   79 .0145 0.369
36 .1065 2.705   47 .0785 1.944   58 .0420 1.067   69 .0292 0.734   80 .0135 0.343
37 .1040 2.642   48 .0760 1.930   59 .0410 1.041   70 .0280 0.712        
38 .1015 2.578   49 .0730 1.854   60 .0400 1.016   71 .0260 0.660        
39 .0995 2.528   50 .0700 1.778   61 .0390 0.990   72 .0250 0.635        
40 .0980 2.489   51 .0670 1.702   62 .0380 0.965   73 .0240 0.610        

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