Cobalt Aircraft Extension Drills - Fractional Sizes - 12" Overall Length

  • Made to NAS 907 Type J specifications, these cobalt extension drills are used for drilling in tough, high tensile strength materials like stainless steels, titanium and inconel. They are made of cobalt high speed steel, with heavy duty flute construction and 135º split point.
  • Extra length for hard to reach holes
     
Qty Diameter Number Part Number Decimal Equivalent Inches Flute Length Inches Package Quantity Price Each
1/16 06-300 .0625 7/8 12 $5.50
5/64 06-301 .0781 1 12 $5.50
3/32 06-302 .0938 1-1/4 12 $4.52
7/64 06-303 .1094 1-1/2 12 $5.32
1/8 06-304 .1250 1-5/8 12 $4.85
9/64 06-305 .1406 1-3/4 12 $6.29
5/32 06-306 .1562 2 12 $4.97
11/64 06-307 .1719 2-1/8 12 $6.74
3/16 06-308 .1875 2-5/16 12 $6.67
13/64 06-309 .2031 2-7/16 12 $7.13
7/32 06-310 .2188 2-1/2 12 $7.45
15/64 06-311 .2344 2-5/8 6 $7.94
1/4 06-312 .2500 2-3/4 6 $6.24
17/64 06-325 .2656 2-7/8 6 $8.95
9/32 06-316 .2812 2-15/16 6 $8.57
19/64 06-317 .2969 3-1/16 6 $10.31
5/16 06-313 .3125 3-1/16 6 $12.11
21/64 06-326 .3281 3-5/16 6 $12.25
11/32 06-321 .3438 3-7/16 6 $12.95
23/64 06-322 .3594 3-1/2 6 $15.39
3/8 06-314 .3750 3-5/8 3 $16.11
25/64 06-327 .3906 3-3/4 3 $17.75
13/32 06-320 .4062 3-7/8 3 $17.84
27/64 06-324 .4219 3-15/16 3 $19.31
7/16 06-318 .4375 3-1/16 3 $20.54
29/64 06-328 .4531 4-3/16 3 $20.48
15/32 06-315 .4688 4-5/16 3 $21.86
31/64 06-329 .4844 4-3/8 3 $22.03
1/2 06-319 .5000 4-1/2 3 $23.15
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