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CHICAGO-LATROBE NAS-Spec High-Speed Steel Jobber-Length Drill Bit - 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 NAS-Spec High-Speed Steel Jobber-Length Drill Bit

The CHICAGO-LATROBE Jobber Length Drill Bit, Letter J (MPN 43780), is a NAS-Spec High-Speed Steel drill bit for aerospace applications. It features a TiCN-coated HSS construction, NAS 907 Type B design, and a 135°…

SKU 3G-OTH-190511

Brand
CHICAGO-LATROBE
Item
NAS-Spec High-Speed Steel Jobber-Length Drill Bit
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
43780
Type
TiCN-Coated HSS, NAS 907 Type B
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 43780), is a NAS-Spec High-Speed Steel drill bit for aerospace applications. It features a TiCN-coated HSS construction, NAS 907 Type B design, and a 135° split point, with a diameter of 0.2770 inches.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit 43780 used for?

This drill bit is designed for aerospace drilling applications requiring NAS 907 Type B compliance. Its 135° split point reduces walking and thrust, while the TiCN coating extends tool life in high-strength alloys. It is suitable for precision hole-making in aircraft-grade materials.

What are the specifications of the CHICAGO-LATROBE 43780 drill bit?

The CHICAGO-LATROBE 43780 is a jobber-length drill bit with a letter J size (0.2770 inch diameter). It features a 135° split point, TiCN-coated high-speed steel (HSS), and meets NAS 907 Type B standards. The manufacturer part number is 43780.

Where to buy CHICAGO-LATROBE 43780 drill bits worldwide?

3G Electric supplies the CHICAGO-LATROBE 43780 drill bit to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this NAS-spec aerospace tool globally.

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

Select a drill bit that matches the required hole diameter and material. For aerospace alloys, choose a TiCN-coated HSS bit like the CHICAGO-LATROBE 43780 with a 135° split point to reduce walking. Ensure compliance with NAS 907 Type B if specified by your engineering drawings.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This jobber-length drill bit is made from TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace applications, particularly in high-strength alloys, stainless steel, and titanium. The split point reduces thrust and improves chip evacuation
CHICAGO-LATROBE
This jobber-length drill bit is made from TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace applications, particularly in high-strength alloys, stainless steel, and titanium. The split point reduces thrust and improves chip evacuation
CHICAGO-LATROBE jobber-length drill bit, Letter L size (0.2900 in diameter), made of TiCN-coated high-speed steel. Features a 135° split point and meets NAS 907 Type B standards. Designed for drilling in high-strength alloys such as stainless steel and titanium in aerospace and precision manufacturing applications
CHICAGO-LATROBE
CHICAGO-LATROBE jobber-length drill bit, Letter L size (0.2900 in diameter), made of TiCN-coated high-speed steel. Features a 135° split point and meets NAS 907 Type B standards. Designed for drilling in high-strength alloys such as stainless steel and titanium in aerospace and precision manufacturing applications
This jobber-length drill bit is made from TiCN-coated high-speed steel and conforms to NAS 907 Type B specifications. It features a 135° split point to reduce walking and thrust during drilling. Suitable for general-purpose drilling in aerospace and other precision applications requiring NAS-spec tooling
CHICAGO-LATROBE
This jobber-length drill bit is made from TiCN-coated high-speed steel and conforms to NAS 907 Type B specifications. It features a 135° split point to reduce walking and thrust during drilling. Suitable for general-purpose drilling in aerospace and other precision applications requiring NAS-spec tooling
CHICAGO-LATROBE Jobber Length Drill Bit: Letter T, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43790)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter T, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43790)
This jobber-length drill bit is made of TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace and other demanding applications where NAS specifications are required. The split point reduces walking and thrust, while the coating extends tool life in high-strength alloys
CHICAGO-LATROBE
This jobber-length drill bit is made of TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace and other demanding applications where NAS specifications are required. The split point reduces walking and thrust, while the coating extends tool life in high-strength alloys
This jobber-length drill bit is made from TiN-coated high-speed steel and meets NAS 907 Type B specifications. It features a 135° split point for reduced thrust and improved chip evacuation. Commonly used in aerospace drilling applications where precision and compliance with NAS standards are required
CHICAGO-LATROBE
This jobber-length drill bit is made from TiN-coated high-speed steel and meets NAS 907 Type B specifications. It features a 135° split point for reduced thrust and improved chip evacuation. Commonly used in aerospace drilling applications where precision and compliance with NAS standards are required

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Black oxide high-speed steel jobber-length drill bit with 135° split point, meeting NAS 907 Type B standards. Designed for drilling in aerospace and precision metalworking applications, the split point reduces walking and requires less thrust. Suitable for use on hardened steels and alloys
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Black oxide high-speed steel jobber-length drill bit with 135° split point, meeting NAS 907 Type B standards. Designed for drilling in aerospace and precision metalworking applications, the split point reduces walking and requires less thrust. Suitable for use on hardened steels and alloys
This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It conforms to NAS 907 Type B specifications for aerospace drilling applications. The #61 size has a 0.0390-inch diameter and is suitable for drilling in high-strength alloys and sheet metal
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This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It conforms to NAS 907 Type B specifications for aerospace drilling applications. The #61 size has a 0.0390-inch diameter and is suitable for drilling in high-strength alloys and sheet metal
This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It conforms to NAS 907 Type B specifications. The 2.6 mm diameter (0.1024 in decimal equivalent) is suited for drilling in aerospace applications, including high-strength alloys and sheet metal
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This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It conforms to NAS 907 Type B specifications. The 2.6 mm diameter (0.1024 in decimal equivalent) is suited for drilling in aerospace applications, including high-strength alloys and sheet metal
This #26 jobber-length drill bit is made from TiCN-coated high-speed steel, meeting NAS 907 Type B specifications. The 135° split point reduces walking on curved surfaces. It is used for drilling holes in materials such as aircraft-grade aluminum, titanium, and stainless steel in precision manufacturing and aerospace applications
CHICAGO-LATROBE
This #26 jobber-length drill bit is made from TiCN-coated high-speed steel, meeting NAS 907 Type B specifications. The 135° split point reduces walking on curved surfaces. It is used for drilling holes in materials such as aircraft-grade aluminum, titanium, and stainless steel in precision manufacturing and aerospace applications
TiN-coated HSS jobber-length drill bit with 135° split point, meeting NAS 907 Type B specifications. Designed for drilling precise holes in hardened steels and alloys in aerospace applications
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TiN-coated HSS jobber-length drill bit with 135° split point, meeting NAS 907 Type B specifications. Designed for drilling precise holes in hardened steels and alloys in aerospace applications
This jobber-length drill bit is made from TiCN-coated high-speed steel and features a 135° split point for reduced walking and lower thrust requirements. It conforms to NAS 907 Type B specifications, making it suitable for precision drilling in aerospace and industrial applications where tight tolerances are required
CHICAGO-LATROBE
This jobber-length drill bit is made from TiCN-coated high-speed steel and features a 135° split point for reduced walking and lower thrust requirements. It conforms to NAS 907 Type B specifications, making it suitable for precision drilling in aerospace and industrial applications where tight tolerances are required
This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It meets NAS 907 Type B specifications and has a 0.4130-inch diameter (Letter Z). Suitable for drilling in aerospace and precision manufacturing applications where NAS compliance is required
CHICAGO-LATROBE
This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It meets NAS 907 Type B specifications and has a 0.4130-inch diameter (Letter Z). Suitable for drilling in aerospace and precision manufacturing applications where NAS compliance is required
This jobber-length drill bit is made from TiN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B specifications. The letter V size corresponds to a 0.3770-inch diameter. Typical applications include drilling in aerospace manufacturing and maintenance, particularly for materials such as stainless steel and titanium
CHICAGO-LATROBE
This jobber-length drill bit is made from TiN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B specifications. The letter V size corresponds to a 0.3770-inch diameter. Typical applications include drilling in aerospace manufacturing and maintenance, particularly for materials such as stainless steel and titanium