550 NAS-Type Heavy-Duty Cobalt Straw Jobber-Length Drill Bit 0.2130 in dia Cutting 3.75 in OAL #3 Wire


Product Description

Manufactured to NAS 907 Type J geometry aerospace specifications. Heavy-duty construction for drilling in tough, high-tensile, and work-hardening materials. Manufactured from premium cobalt high-speed steel. Straw finish adds lubricity and easily identifies cobalt drills. 135?? P3 split point is self-centering for reduced thrust and easier penetration. Sizes smaller than 0.0625 inch do not have split point.


Applicable Materials Alloy Steel; Stainless Steel; Titanium; Tool Steel
Bit Length 3.75 in
Coating Straw
Cutting Diam [Nom] 0.2130 in
Dia. [Nom] #3 Wire
Finish Straw
Flute Length 2.5 in
Material HSS-CO 8% (M42)
No. of Flutes 2
Overall Length [Nom] 3.75 in
Point Angle 135?? RHS/RHC
Point Shape Split
Shank Type Straight
SKU Group Auto-Id 219972
Type Style 550
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