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.
Product Specifications
| EDP Number | 59016 |
| Material Code | HSS |
| Basic Standard Group | NAS907 |
| Usable Length | 4 |
| Point Angle | 135 |
| Cutting Diameter (mm) | 6.35 mm |
| Cutting Diameter (Inch) | 0.25" |
| Cutting Diameter (Fractional Inch) | 1/4" |
| Overall Length (mm) | 304.8 mm |
| Overall Length (Inch) | 12 |
| Overall Length (Fractional Inch) | 12" |
| Length Chip Flute (Fractional Inch) | 2.3/4" |
| Hand Direction | Right |
| Drill Length | Aircraft Extension |
| Coating | Steam Tempered |
| Surface Color | Black |
| Surface Treatment | Steam Tempered |
| Cutting Diameter (Wire Gauge Size) | |
714.897.1700
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