CHICAGO-LATROBE Jobber Length Drill Bit: #77, 135° Split Point, Black Oxide HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #77 is a NAS-Spec High-Speed Steel Jobber-Length Drill Bit for Aerospace, manufactured as a Black Oxide HSS, NAS 907 Type B tool with a 135° Split Point and a 0.0180…
SKU 3G-OTH-190218
Need installation or engineering help?
Ask a question
Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #77 is a NAS-Spec High-Speed Steel Jobber-Length Drill Bit for Aerospace, manufactured as a Black Oxide HSS, NAS 907 Type B tool with a 135° Split Point and a 0.0180 diameter. 3G Electric interprets your demand for precision aerospace tooling, sourcing this OEM-specified bit and supporting your procurement across 14 industrial departments — with specialist depth in combustion, pumps and controls as a trust anchor.
Frequently Asked Questions
What is the CHICAGO-LATROBE #77 jobber length drill bit used for?
This #77 drill bit is designed for precision hole drilling in aerospace applications, meeting NAS 907 Type B specifications. Its 135° split point reduces walking on curved surfaces, while the black oxide HSS construction provides heat resistance and lubricity for drilling stainless steel and titanium alloys.
What are the specifications of the CHICAGO-LATROBE 44747 drill bit?
The CHICAGO-LATROBE 44747 is a #77 jobber length drill bit with a 0.0180 inch diameter, 135° split point, and black oxide high-speed steel finish. It conforms to NAS 907 Type B standards, making it suitable for aerospace-grade fastening holes where tight tolerances are required.
Where to buy CHICAGO-LATROBE NAS 907 drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE NAS 907 Type B drill bits like the #77 (MPN 44747) to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders, ensuring you receive genuine aerospace-grade tooling regardless of your location.
How to select the correct CHICAGO-LATROBE drill bit for aerospace work?
For aerospace work, match the drill bit to the material and hole tolerance required. The #77 size (0.0180 inch) suits small fastener holes. CHICAGO-LATROBE's 135° split point and black oxide HSS reduce work hardening on tough alloys. Always verify NAS 907 Type B compliance for critical airframe assemblies.
Used in
Common applications for CHICAGO-LATROBECHICAGO-LATROBE Products
3G Electric supplies CHICAGO-LATROBE nas-spec high-speed steel jobber-length drill bits for aerospace. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
