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Precision Twist Drill

1/2" HSS Aircraft Extension Drills 135° Steam Tempered Coated
Order in Multiples of 3

Item #: 12634-6001318

Product Info


500-12 aircraft extension drill bits, manufactured to NAS907 type B standard have a 135 degree split point which reduces the push force needed and is an aid to self-centering. The tools have a long overall length with short flute, recommended for stable drilling in areas which are hard to reach, and come with a steam oxide finish to ensure a clean and accurate result by preventing workpiece material from sticking to the cutting surfaces of the tool. 500-12 aircraft extension drill bits are available in many fractional sizes from 3/64” to 1/2” and are manufactured from premium High Speed steel so can be used for drilling a wide range of materials including aluminum, stainless steel and steels.

1/2” HSS Aircraft Extension Drills 135° Steam Tempered Coated

⚠ WARNING: Cancer – www.P65Warnings.ca.gov

Item Specifications

  • Steam Tempered
  • Cylindrical Shank
  • Right
  • 0.5
  • 1/2
  • 12.7
  • Black
  • 4-1/2
  • High Speed Steel
  • 12
  • 304.8
  • 135 Degrees
  • 500-12
  • 4
  • 0.59 lbs per PC
$41.76 /PC
Regular Price: $90.50
QTY:


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