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

The CHICAGO-LATROBE Jobber Length Drill Bit (Letter K, MPN 43781) is a NAS-spec high-speed steel drill bit for aerospace, featuring a TiCN coating and a 135° split point. With a diameter of 0.2810 inches, it meets…

SKU 3G-OTH-190538

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: Letter K, 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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
43781
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 K, MPN 43781) is a NAS-spec high-speed steel drill bit for aerospace, featuring a TiCN coating and a 135° split point. With a diameter of 0.2810 inches, it meets NAS 907 Type B requirements. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit 43781 used for?

This TiCN-coated HSS drill bit is designed for aerospace and high-precision industrial drilling. Its 135° split point reduces walking and thrust, making it ideal for tough materials like stainless steel and titanium alloys.

What are the specifications of the CHICAGO-LATROBE 43781 drill bit?

The CHICAGO-LATROBE 43781 is a Letter K jobber length drill bit with a 0.2810 inch diameter, 135° split point, and TiCN-coated HSS. It meets NAS 907 Type B standards for aerospace applications.

Where to buy CHICAGO-LATROBE 43781 drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 43781 drill bits worldwide. We handle full logistics, customs clearance, and delivery to your facility, ensuring you get genuine NAS-spec tooling for aerospace and industrial use.

How to select the right jobber length drill bit for aerospace materials?

For aerospace materials like titanium or stainless steel, choose a TiCN-coated HSS bit with a 135° split point, such as the CHICAGO-LATROBE 43781. The coating reduces heat and wear, while the split point improves hole accuracy without a center punch.

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
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
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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 TiN-coated high-speed steel jobber-length drill bit meets NAS 907 Type B specifications for aerospace applications. The 135° split point reduces walking and thrust, enabling precise drilling in hard metals such as stainless steel and titanium. With a Letter K diameter of 0.2810 inches, it is suited for demanding industrial drilling operations
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This TiN-coated high-speed steel jobber-length drill bit meets NAS 907 Type B specifications for aerospace applications. The 135° split point reduces walking and thrust, enabling precise drilling in hard metals such as stainless steel and titanium. With a Letter K diameter of 0.2810 inches, it is suited for demanding industrial drilling operations
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
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
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 TiCN-coated high-speed steel and meets NAS 907 Type B specifications. It features a 135° split point for reduced walking and improved penetration. Suitable for precision drilling in aerospace and other demanding industrial applications
CHICAGO-LATROBE
This jobber-length drill bit is made from TiCN-coated high-speed steel and meets NAS 907 Type B specifications. It features a 135° split point for reduced walking and improved penetration. Suitable for precision drilling in aerospace and other demanding industrial applications

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This jobber-length drill bit is made from high-speed steel with a black oxide finish. It features a 135° split point and conforms to NAS 907 Type B specifications. Commonly used in aerospace and other precision drilling applications where NAS standards are required
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This #49 jobber length drill bit has a 0.0730-inch diameter and is made from TiCN-coated high-speed steel. It features a 135° split point to reduce walking and thrust, and conforms to NAS 907 Type B standards. Suitable for precision hole drilling in aerospace and other demanding applications
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TiAlN-coated high-speed steel jobber-length drill bit with a 135° split point, conforming to NAS 907 Type B. The #43 size (0.0890 in diameter) is suited for precision drilling in aerospace and other demanding industrial applications where reduced walking and thrust are required
This jobber-length drill bit is made from TiAlN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B standards. The #17 size has a 0.1730 inch diameter. Suitable for general drilling applications in metalworking and machining
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This jobber-length drill bit is made from TiAlN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B standards. The #17 size has a 0.1730 inch diameter. Suitable for general drilling applications in metalworking and machining
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Jobber-length drill bit made of high-speed steel with black oxide finish, meeting NAS 907 Type B specifications. Features a 135° split point to reduce walking and require less thrust. Suitable for precision drilling in aerospace applications, including hard metals and sheet materials
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This #13 jobber-length drill bit is made of TiN-coated high-speed steel with a 135° split point, conforming to NAS 907 Type B specifications. It is designed for precision drilling in aerospace and other demanding industrial applications, particularly in high-strength alloys and sheet metal
Jobber-length drill bit with a #28 diameter (0.1405 in), made from TiAlN-coated high-speed steel. Features a 135° split point per NAS 907 Type B for reduced walking and thrust. Suitable for precision drilling in aerospace and other demanding applications
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Jobber-length drill bit with a #28 diameter (0.1405 in), made from TiAlN-coated high-speed steel. Features a 135° split point per NAS 907 Type B for reduced walking and thrust. Suitable for precision drilling in aerospace and other demanding applications
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Black oxide high-speed steel jobber-length drill bit with 135° split point. Meets NAS 907 Type B standards. Used for drilling in aerospace and precision machining applications where reduced walking and thrust are required