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CHICAGO-LATROBE Jobber Length Drill Bit: #20, 135° Split Point, TiAlN-Coated Cobalt - NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE Jobber Length Drill Bit: #20, 135° Split Point, TiAlN-Coated Cobalt

The CHICAGO-LATROBE Jobber Length Drill Bit #20 is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, featuring a TiAlN-Coated Cobalt construction with a 135° Split Point and NAS 907 Type J compliance. With a…

SKU 3G-OTH-200108

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: #20, 135° Split Point, TiAlN-Coated Cobalt
Category
NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
44990
Type
TiAlN-Coated Cobalt, NAS 907 Type J
Split Point
135°
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Jobber Length Drill Bit #20 is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, featuring a TiAlN-Coated Cobalt construction with a 135° Split Point and NAS 907 Type J compliance. With a diameter of 0.1610 inches (MPN 44990), this bit is designed for precision drilling in demanding aerospace applications.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit #20 used for?

This drill bit is designed for aerospace and high-precision drilling applications. Its 135° split point reduces walking, while the TiAlN coating on cobalt steel extends tool life in tough materials like stainless steel and titanium. It meets NAS 907 Type J specifications for critical aerospace fastening holes.

What are the specifications of the CHICAGO-LATROBE 44990 drill bit?

The CHICAGO-LATROBE 44990 is a #20 jobber length drill bit with a 0.1610-inch diameter, 135° split point, and TiAlN-coated cobalt construction. It conforms to NAS 907 Type J standards, making it suitable for aerospace-grade materials. The manufacturer part number is 44990.

Where to buy CHICAGO-LATROBE 44990 drill bits worldwide?

3G Electric supplies the CHICAGO-LATROBE 44990 drill bit worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time; we source and deliver this NAS-spec tool to any international destination.

How to select the correct CHICAGO-LATROBE drill bit for aerospace work?

Select based on hole size and material. The #20 bit (0.1610 inch) suits #20 screw clearance holes per NAS standards. For tough alloys, choose TiAlN-coated cobalt bits like this CHICAGO-LATROBE model. Ensure the 135° split point matches your drilling machine's rigidity to prevent wandering.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE nas-spec cobalt 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.

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