Threaded Shank Adapter Drill Type D - Very Stubby

  • Type "D" adapter drills are made from cobalt high speed steel and are manufactured to NAS 965 Type "D" specifications with 135° heavy duty split points and surface treated for drilling hard, tough high tensile strength materials. When drilling low tensile strength materials, the Type "D" cobalt drill will have a significantly greater tool life than the NAS 965 Type "B", high speed steel adapter drill, resulting in a much lower cost per drill.
  • Threaded Shank Drill Bits
     

Quantity Size Part Number Decimal Equivalent Inches Millimeter Equivalent Length Price Each
1/4 11-413 .2500 6.35 3/8 $4.40
#5 10-405 .2055 5.22 3/8 $5.40
#8 10-408 .1990 5.06 3/8 $5.02
#10 10-410 .1935 4.92 3/8 $4.10
#11 10-411 .1910 4.85 3/8 $4.99
#12 10-412 .1890 4.80 3/8 $5.12
#13 10-413 .1850 4.70 3/8 $4.40
#16 10-416 .1770 4.50 3/8 $4.44
#20 10-420 .1610 4.09 3/8 $4.09
#21 10-421 .1590 4.04 3/8 $3.58
#26 10-426 .1470 3.73 3/8 $3.50
#27 10-427 .1440 3.66 3/8 $4.23
#30 10-430 .1285 3.26 3/8 $2.65
#40 10-440 .0980 2.49 3/8 $2.50
#50 10-450 .0700 1.78 3/8 $4.88