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

The CHICAGO-LATROBE Jobber Length Drill Bit, Letter K (MPN 42781), is a NAS-Spec high-speed steel drill bit for aerospace applications. It features a TiAlN-coated HSS construction with a 135° split point and a…

SKU 3G-OTH-190472

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: Letter K, 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
42781
Type
TiAlN-Coated HSS
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, Letter K (MPN 42781), is a NAS-Spec high-speed steel drill bit for aerospace applications. It features a TiAlN-coated HSS construction with a 135° split point and a 0.2810-inch diameter. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments, with specialist expertise in combustion, pumps, and controls.

Frequently Asked Questions

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

This TiAlN-coated HSS drill bit is designed for aerospace and general industrial drilling. The 135° split point reduces walking and thrust, making it ideal for precise hole creation in tough materials. 3G Electric supplies this NAS-spec bit across 14 industrial departments.

What are the specifications of the CHICAGO-LATROBE 42781 drill bit?

The CHICAGO-LATROBE 42781 is a Letter K jobber length drill bit with a 0.2810 inch diameter, 135° split point, and TiAlN-coated high-speed steel. It meets NAS specifications for aerospace applications. 3G Electric sources this genuine industrial bit for worldwide delivery.

Where to buy CHICAGO-LATROBE drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 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. Contact us for availability and lead time.

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

For aerospace drilling, choose a bit with a 135° split point to reduce walking and a TiAlN coating for heat resistance. The CHICAGO-LATROBE 42781 meets NAS specs with a 0.2810 inch diameter. 3G Electric can help match your material and tolerance requirements.

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 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
CHICAGO-LATROBE
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)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter H, 135° Split Point, TiAlN-Coated HSS (MPN 42778)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter R, 135° Split Point, TiAlN-Coated HSS (MPN 42788)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter R, 135° Split Point, TiAlN-Coated HSS (MPN 42788)
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
This jobber-length drill bit is made of high-speed steel with a titanium aluminum nitride (TiAlN) coating. It features a 135° split point and a Letter B diameter of 0.2380 inches. Designed for general-purpose drilling in ferrous and non-ferrous materials, it is commonly used in aerospace and other precision machining applications where NAS specifications are required
CHICAGO-LATROBE
This jobber-length drill bit is made of high-speed steel with a titanium aluminum nitride (TiAlN) coating. It features a 135° split point and a Letter B diameter of 0.2380 inches. Designed for general-purpose drilling in ferrous and non-ferrous materials, it is commonly used in aerospace and other precision machining applications where NAS specifications 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
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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
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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
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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 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
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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