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CHICAGO-LATROBE Jobber Length Drill Bit: Letter J, 135° Split Point - 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: Letter J, 135° Split Point

The CHICAGO-LATROBE Jobber Length Drill Bit (Letter J, MPN 42780) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiAlN-coated HSS construction and a 135° split point. With a diameter of 0.2770…

SKU 3G-OTH-190502

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: Letter J, 135° Split Point
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
42780
Type
TiAlN-Coated HSS
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 (Letter J, MPN 42780) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiAlN-coated HSS construction and a 135° split point. With a diameter of 0.2770 inches, it is designed for precision drilling in demanding applications. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments, with specialist expertise in combustion, pumps, and controls as a trust anchor.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit 42780 used for?

This TiAlN-coated HSS drill bit is designed for aerospace and NAS-spec applications. Its 135° split point reduces walking and thrust, making it suitable for drilling hard materials like titanium and stainless steel in precision manufacturing.

What are the specifications of the CHICAGO-LATROBE 42780 drill bit?

The CHICAGO-LATROBE 42780 is a jobber length drill bit with a letter J size (0.2770 inch), 135° split point, and TiAlN-coated high-speed steel. It meets NAS specifications for aerospace drilling, offering heat resistance and extended tool life.

Where to buy CHICAGO-LATROBE 42780 drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 42780 drill bits worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this NAS-spec TiAlN-coated HSS bit to your facility, regardless of location.

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

For aerospace drilling, choose a bit with a 135° split point and TiAlN coating like the CHICAGO-LATROBE 42780. Match the letter J size (0.2770 inch) to your hole tolerance. Use proper coolant and pecking cycles to manage heat in hard alloys.

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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Cross-referenced by specification & description
This jobber-length drill bit is made from high-speed steel with a TiAlN coating and features a 135° split point. It is manufactured to NAS specifications for aerospace applications. The bit is sized Letter L (0.2900 inch diameter) and is suitable for drilling in materials such as titanium and stainless steel
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This jobber-length drill bit is made from high-speed steel with a TiAlN coating and features a 135° split point. It is manufactured to NAS specifications for aerospace applications. The bit is sized Letter L (0.2900 inch diameter) and is suitable for drilling in materials such as titanium and stainless steel
This jobber-length drill bit is made from TiAlN-coated high-speed steel and features a 135° split point. It meets NAS specifications for aerospace applications, providing reduced walking and thrust during drilling. Suitable for use in hard metals such as titanium and stainless steel in aircraft assembly and maintenance
CHICAGO-LATROBE
This jobber-length drill bit is made from TiAlN-coated high-speed steel and features a 135° split point. It meets NAS specifications for aerospace applications, providing reduced walking and thrust during drilling. Suitable for use in hard metals such as titanium and stainless steel in aircraft assembly and maintenance
CHICAGO-LATROBE Jobber Length Drill Bit: Letter H, 135° Split Point, TiAlN-Coated HSS (MPN 42778)
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This jobber-length drill bit is made from TiAlN-coated high-speed steel and features a 135° split point. It meets NAS specifications for aerospace applications. The 0.2420-inch diameter (Letter C) is suited for precision drilling in hard metals, with the split point reducing thrust and improving chip evacuation
CHICAGO-LATROBE
This jobber-length drill bit is made from TiAlN-coated high-speed steel and features a 135° split point. It meets NAS specifications for aerospace applications. The 0.2420-inch diameter (Letter C) is suited for precision drilling in hard metals, with the split point reducing thrust and improving chip evacuation
CHICAGO-LATROBE Jobber Length Drill Bit: Letter B, 135° Split Point, TiAlN-Coated HSS (MPN 42772)
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CHICAGO-LATROBE Jobber Length Drill Bit: Letter B, 135° Split Point, TiAlN-Coated HSS (MPN 42772)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter G, 135° Split Point, TiAlN-Coated HSS (MPN 42777)
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CHICAGO-LATROBE Jobber Length Drill Bit: Letter G, 135° Split Point, TiAlN-Coated HSS (MPN 42777)

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