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CHICAGO-LATROBE NAS-Spec Cobalt Jobber-Length Drill Bit - NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE NAS-Spec Cobalt Jobber-Length Drill Bit

The CHICAGO-LATROBE Jobber Length Drill Bit (8 mm, MPN 47890) is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, Type Straw/Bronze Cobalt, NAS 907 Type B, with a 135° Split Point and a 0.3150 specification.

SKU 3G-OTH-200176

Brand
CHICAGO-LATROBE
Item
NAS-Spec Cobalt Jobber-Length Drill Bit
Part Number
47890
Category
NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
Available to Order
Also known as:47890CHICAGO-LATROBE
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Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
47890
Type
Straw/Bronze Cobalt, 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 (8 mm, MPN 47890) is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, Type Straw/Bronze Cobalt, NAS 907 Type B, with a 135° Split Point and a 0.3150 specification.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit 47890 used for?

This NAS 907 Type B cobalt jobber-length drill bit is designed for aerospace drilling applications. Its 8 mm diameter and 135° split point reduce walking and improve hole accuracy in hard metals like stainless steel and titanium alloys.

What are the specifications of the CHICAGO-LATROBE 47890 drill bit?

The CHICAGO-LATROBE 47890 is an 8 mm (0.3150 inch) jobber-length drill bit with a 135° split point and straw/bronze cobalt finish. It meets NAS 907 Type B specifications for aerospace use and is manufactured under part number 47890.

Where to buy CHICAGO-LATROBE 47890 drill bits worldwide?

3G Electric supplies the CHICAGO-LATROBE 47890 drill bit worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time.

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

For aerospace drilling, choose a cobalt jobber-length bit like the CHICAGO-LATROBE 47890 with a 135° split point to prevent wandering on curved surfaces. Ensure the diameter matches your hole requirement and the bit meets NAS 907 Type B specs for material compatibility.

Used in

Common applications for CHICAGO-LATROBE
Aerospace manufacturing — Chicago-Latrobe NAS-spec jobber-length drill bits (e.g., MPN 42631) for drilling holes in airframe components.
Metal fabrication — Chicago-Latrobe single-flute countersinks (e.g., MPN 56774) for deburring and chamfering holes in steel plates.
Machine shop — Chicago-Latrobe 82° countersinks (e.g., MPN 56738) for creating flush-mount recesses for flat-head screws in assemblies.
Maintenance and repair — Chicago-Latrobe 90° countersinks (e.g., MPN 56760) for chamfering holes and removing burrs on industrial equipment.
Automotive production — Chicago-Latrobe HSS drill bits for holemaking in engine blocks and chassis components.
General machining — Chicago-Latrobe countersinks in various body diameters for chamfering and deburring in job shops.
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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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