Categories

Site Information

 Loading... Please wait...
click an image to enlarge
  • 20-piece set of high-speed jewelers drill bits in sizes 61-80
  • Image 2
  • Image 3
  • Image 4

High Speed Steel Twist Drill Assortment Jewelers 20 Piece Set Size 61-80

Your Price: $12.95
SKU:
28.0542
Quantity:

Product Description

Made of high-speed steel, this handy drill index offers sizes 6180 (.0390" .0135" or .99 - .34mm) for fine jobs. All drills are handily marked by size, finely ground and heat-treated to a Rockwell hardness of 63. Your small drill will stay conveniently organized in this handy metal index.

  • Drill index offers 20 drills in metal storage case with sizes clearly labeled in inches and drill gauge
  • Sizes included (#61-80): .0390" .0135" inches or .990 - .343mm
  • Made of high speed steel

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