CLEVELAND Aircraft Extension Drill: #16, 12" Overall Lg, 135° Split Point
The CLEVELAND Aircraft Extension Drill: #16 is an NAS-Spec Cobalt Aircraft-Extension Drill Bit (SKU 439D62, MPN C08179) with a 0.1770 diameter, 12" overall length, 135° split point, and a straw/bronze cobalt finish…
SKU 3G-OTH-198876
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Product Description
The CLEVELAND Aircraft Extension Drill: #16 is an NAS-Spec Cobalt Aircraft-Extension Drill Bit (SKU 439D62, MPN C08179) with a 0.1770 diameter, 12" overall length, 135° split point, and a straw/bronze cobalt finish. It conforms to NAS 907 Type J specifications.
Frequently Asked Questions
What is the CLEVELAND Aircraft Extension Drill #16 used for?
The CLEVELAND Aircraft Extension Drill #16 is used for drilling precision holes in aerospace-grade materials. Its 12" overall length and 135° split point allow access to tight spaces in aircraft structures. The straw/bronze cobalt finish provides heat resistance and durability for extended drilling operations in metal alloys.
What are the specifications of the CLEVELAND C08179 drill bit?
The CLEVELAND C08179 is a #16 aircraft extension drill bit with a 0.1770" diameter, 12" overall length, and 135° split point. It features a straw/bronze cobalt finish and conforms to NAS 907 Type J specifications. The cobalt construction offers enhanced hardness for drilling tough aerospace alloys.
Where to buy CLEVELAND aircraft extension drill bits worldwide?
3G Electric supplies CLEVELAND aircraft extension drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us to source the CLEVELAND C08179 or other NAS-spec drill bits for your aerospace operations.
How to select the right CLEVELAND aircraft extension drill bit?
Select a CLEVELAND aircraft extension drill bit based on hole size, material thickness, and access requirements. For the C08179, the #16 size (0.1770" diameter) suits precision holes in aerospace alloys. The 12" length and 135° split point reduce walking and improve chip evacuation. Always match the NAS 907 Type J spec for compliance.
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3G Electric supplies CLEVELAND nas-spec cobalt aircraft-extension drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















