Piloted Double Margin - 6" Overall Length Extension Drills

  • Designed for close tolerance drilling in titanium, stainless, heat treated material and aluminum alloys. When the drill point penetrates enough for the second margin to contact the wall of the hole, the point is stabilized and true cylindrical geometry is established. Smooth accurate holes are produced and reaming can often be eliminated.
Quantity Part Number Drill Size Decimal Equivalent Inches Pilot Diameter Inches Flute Length Inches Overall Length Inches Package Quantity Price Each
40-472 30x40 .1285 .0980 1-5/8 6 6 $9.15
40-522 21x30 .1590 .1285 2-1/8 6 6 $9.22
50-694 20x30 .1610 .1285 2-1/8 6 6 $9.10