CLEVELAND Aircraft Extension Drill: #49, 6" Overall Lg, 135° Split Point, HSS
The CLEVELAND Aircraft Extension Drill: #49 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, part number C13171. It features a 0.0730-inch diameter, 6-inch overall length, and a 135° split point…
SKU 3G-OTH-208072
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Product Description
The CLEVELAND Aircraft Extension Drill: #49 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, part number C13171. It features a 0.0730-inch diameter, 6-inch overall length, and a 135° split point, conforming to NAS 907 Type B specifications.
Frequently Asked Questions
What is the CLEVELAND Aircraft Extension Drill #49 used for?
The CLEVELAND Aircraft Extension Drill #49 is used for precision drilling in aerospace and industrial applications where deep, tight-tolerance holes are required. Its 6-inch overall length and 135° split point reduce walking and improve chip evacuation in hard-to-reach spots.
What are the specifications of the CLEVELAND C13171 drill bit?
The CLEVELAND C13171 is a #49 aircraft extension drill bit with a 0.0730-inch diameter, 6-inch overall length, and 135° split point. It is made of high-speed steel (HSS) and conforms to NAS 907 Type B specifications for aerospace-grade drilling.
Where to buy CLEVELAND aircraft extension drill bits worldwide?
3G Electric supplies CLEVELAND aircraft extension drill bits worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine NAS-spec tooling like the C13171 to your facility, regardless of location.
How to select the right aircraft extension drill bit for NAS 907 applications?
Select an NAS 907 Type B drill bit like the CLEVELAND C13171 by matching the wire size (#49, 0.0730-inch diameter) and overall length (6 inches) to your hole depth and material. The 135° split point aids self-centering in high-strength alloys common in aerospace work.
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3G Electric supplies CLEVELAND nas-spec high-speed steel aircraft-extension drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















