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502-12R 059218 Oxide 135° Extra Length Aircraft Extension Drill R
MODEL 502-12R
This product has a minimum order quantity of (6 minimum) This is the minimum order quantity available when purchasing this product.
$38.67 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: Yes
Basic Standard
NAS907
Coating
Steam Tempered
Connection (shank) description
Cylindrical shank
Cutting diameter - imperial letter (DC)
R"
Cutting diameter - inch (DC)
0.339
Drill Length
XL
Hand (Cutting direction)
Right
Length chip flute - fractional inch (LCF)
3.7/16
Material
HSS
Overall length - fractional inch (OAL)
12
Point Angle (SIG)
135
Surface treatement
Steam Tempered
Usable length (ULDR)
4
502-12 long series aircraft extension drills, to NAS907 type B standard, are manufactured from premium High Speed steel and can be used for drilling many materials including stainless steel, aluminum and steels. They have a steam oxide finish to stop workpiece material from adhering to the cutting surfaces, so you get an accurate, clean finish, and a 135 degree split point which reduces the push force needed and aids self-centering.
For stable drilling in areas which are difficult to reach, 502-12 aircraft extension drill bits have a long overall length (12”) with a short flute length. They are available in letter sizes from A to Z.
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