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CHICAGO-LATROBE Jobber Length Drill Bit: #4, 135° Split Point, TiCN-Coated HSS - NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE Jobber Length Drill Bit: #4, 135° Split Point, TiCN-Coated HSS

The CHICAGO-LATROBE Jobber Length Drill Bit #4 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS, NAS 907 Type B construction with a 135° split point. With a diameter of 0.2090…

SKU 3G-OTH-190572

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: #4, 135° Split Point, TiCN-Coated HSS
Category
NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
43674
Type
TiCN-Coated HSS, NAS 907 Type B
Split Point
135°

Technical Documents

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Jobber Length Drill Bit #4 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS, NAS 907 Type B construction with a 135° split point. With a diameter of 0.2090 inches (MPN 43674), it meets stringent aerospace standards for precision drilling.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit #4 used for?

This drill bit is designed for aerospace and precision industrial drilling applications. Its 135° split point reduces walking and eliminates the need for a center punch, while the TiCN coating extends tool life on abrasive materials. It meets NAS 907 Type B specifications for high-reliability fastening holes.

What are the specifications of the CHICAGO-LATROBE 43674 drill bit?

The CHICAGO-LATROBE 43674 is a #4 jobber length drill bit with a 0.2090-inch diameter, 135° split point, and TiCN-coated high-speed steel. It conforms to NAS 907 Type B standards for aerospace use. The manufacturer part number is 43674, and the SKU is 434C65.

Where to buy CHICAGO-LATROBE drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the 43674 or other NAS-spec bits for your aerospace operations.

How to select the right CHICAGO-LATROBE drill bit for aerospace applications?

Select a drill bit that matches the material and hole tolerance required. For aerospace, use NAS 907 Type B bits like the CHICAGO-LATROBE 43674 with a 135° split point and TiCN coating for hard alloys. Verify diameter (0.2090 inch for #4) and ensure the point angle suits your drilling machine.

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 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.

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