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CHICAGO-LATROBE Jobber Length Drill Bit: 4.9 mm, 135° Split Point - 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: 4.9 mm, 135° Split Point

SKU 3G-OTH-200161

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: 4.9 mm, 135° Split Point
Category
NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
47859
Type
Straw/Bronze Cobalt
Split Point
135°
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

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

This 4.9 mm straw/bronze cobalt drill bit is designed for aerospace and high-strength alloy drilling. Its 135° split point reduces walking and thrust, making it ideal for precision holemaking in NAS-spec applications where cobalt hardness and heat resistance are critical.

What are the specifications of the CHICAGO-LATROBE 47859 drill bit?

The CHICAGO-LATROBE 47859 is a 4.9 mm jobber length drill bit with a 135° split point and straw/bronze cobalt finish. It meets NAS-spec requirements for aerospace use, offering durability in tough materials. The part number is 47859 and the decimal equivalent is 0.1929 inches.

Where to buy CHICAGO-LATROBE drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE drill bits like the 47859 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this NAS-spec cobalt jobber-length drill bit for aerospace applications.

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

For aerospace alloys, choose a cobalt jobber-length bit like the CHICAGO-LATROBE 47859 with a 135° split point to minimize walking. Match the diameter (4.9 mm) to your hole tolerance. The straw/bronze finish indicates cobalt content for heat resistance during high-speed drilling.

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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