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CHICAGO-LATROBE #42 TiN-Coated Cobalt Jobber-Length Drill Bit - NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE #42 TiN-Coated Cobalt Jobber-Length Drill Bit

The CHICAGO-LATROBE Jobber Length Drill Bit #42 is a TiN-Coated Cobalt, NAS 907 Type J drill bit with a 135° split point and a 0.0935-inch diameter (MPN 54077). Designed to NAS-Spec for aerospace applications, it is…

SKU 3G-OTH-200074

Brand
CHICAGO-LATROBE
Item
#42 TiN-Coated Cobalt Jobber-Length Drill Bit
Part Number
54077
Category
NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
Available to Order
Also known as:54077CHICAGO-LATROBE
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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
54077
Type
TiN-Coated Cobalt, NAS 907 Type J
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 #42 is a TiN-Coated Cobalt, NAS 907 Type J drill bit with a 135° split point and a 0.0935-inch diameter (MPN 54077). Designed to NAS-Spec for aerospace applications, it is supplied by 3G Electric, which interprets customer demand and delivers genuine industrial equipment across 14 departments—including cutting tools—with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit #42 used for?

This TiN-coated cobalt drill bit is designed for aerospace applications requiring NAS 907 Type J compliance. It drills precise holes in hardened steels, stainless steels, and titanium alloys. The 135° split point reduces walking and eliminates the need for center punching, making it ideal for high-tolerance manufacturing and maintenance operations.

What are the specifications of the CHICAGO-LATROBE 54077 drill bit?

The CHICAGO-LATROBE 54077 is a #42 jobber length drill bit with a 0.0935-inch diameter, 135° split point, and TiN-coated cobalt construction. It meets NAS 907 Type J specifications for aerospace use. The TiN coating extends tool life and reduces friction when drilling tough materials like titanium and stainless steel.

Where to buy CHICAGO-LATROBE 54077 drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 54077 drill bits worldwide. As a global industrial equipment distributor since 1990, 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 aerospace drill bit to any international destination.

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

Select based on material hardness and hole tolerance. For titanium and stainless steel, choose TiN-coated cobalt bits like the CHICAGO-LATROBE 54077 with a 135° split point. Verify the NAS 907 Type J specification for aerospace compliance. Match the wire size (#42 = 0.0935 in) to your required hole diameter and ensure proper RPM and coolant for optimal performance.

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.
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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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