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CHICAGO-LATROBE Jobber Length Drill Bit: #21, 135° Split Point, TiN-Coated Cobalt - NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE Jobber Length Drill Bit: #21, 135° Split Point, TiN-Coated Cobalt

The CHICAGO-LATROBE Jobber Length Drill Bit #21 is a NAS-Spec Cobalt jobber-length drill bit for aerospace, featuring a TiN-Coated Cobalt construction, 135° split point, and NAS 907 Type J compliance. With a…

SKU 3G-OTH-200106

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: #21, 135° Split Point, TiN-Coated Cobalt
Category
NAS-Spec Cobalt 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
54031
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 #21 is a NAS-Spec Cobalt jobber-length drill bit for aerospace, featuring a TiN-Coated Cobalt construction, 135° split point, and NAS 907 Type J compliance. With a 0.1590-inch diameter (MPN 54031), it is designed for precision drilling in demanding applications.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit #21 used for?

This TiN-coated cobalt drill bit is designed for aerospace and high-precision machining applications. Its 135° split point reduces walking and improves hole accuracy in tough materials like stainless steel and titanium, meeting NAS 907 Type J specifications.

What are the specifications of the CHICAGO-LATROBE 54031 drill bit?

The CHICAGO-LATROBE 54031 is a #21 jobber length drill bit with a 0.1590-inch diameter, 135° split point, and TiN-coated cobalt construction. It conforms to NAS 907 Type J standards, making it suitable for aerospace-grade drilling tasks.

Where to buy CHICAGO-LATROBE drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE drill bits worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine NAS-spec tooling to aerospace and manufacturing facilities across all regions.

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

For aerospace applications, choose a drill bit with a 135° split point and TiN-coated cobalt material, like the CHICAGO-LATROBE NAS 907 Type J. Ensure the diameter matches your hole size requirement and that the bit meets NAS specifications for material and geometry.

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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Jobber Length Drill Bit: #20, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54030)
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CHICAGO-LATROBE Jobber Length Drill Bit: #20, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54030)
CHICAGO-LATROBE Jobber Length Drill Bit: #22, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54032)
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CHICAGO-LATROBE Jobber Length Drill Bit: #22, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54032)
CHICAGO-LATROBE Jobber Length Drill Bit: #23, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54033)
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CHICAGO-LATROBE Jobber Length Drill Bit: #23, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54033)
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CHICAGO-LATROBE Jobber Length Drill Bit: #11, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54021)
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CHICAGO-LATROBE Jobber Length Drill Bit: #19, 135° Split Point, TiN-Coated Cobalt, NAS 907 Type J (MPN 54029)

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