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CHICAGO-LATROBE Jobber Length Drill Bit: 21/64", 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: 21/64", 135° Split Point

The CHICAGO-LATROBE Jobber Length Drill Bit (21/64", MPN 47721) is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, featuring a 135° split point and Straw/Bronze Cobalt construction. With a diameter of 0.3281…

SKU 3G-OTH-200017

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: 21/64", 135° Split Point
Category
NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
47721
Type
Straw/Bronze Cobalt
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 (21/64", MPN 47721) is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, featuring a 135° split point and Straw/Bronze Cobalt construction. With a diameter of 0.3281 inches, this bit is designed for demanding aerospace applications. 3G Electric interprets your demand and sources this genuine industrial tool across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring the right solution.

Frequently Asked Questions

What is the CHICAGO-LATROBE 47721 drill bit used for?

The CHICAGO-LATROBE 47721 is a NAS-spec cobalt jobber-length drill bit designed for aerospace applications. Its 135° split point reduces walking and thrust, making it suitable for drilling hard metals like stainless steel and titanium in aircraft maintenance and manufacturing.

What are the specifications of the CHICAGO-LATROBE 47721 drill bit?

The CHICAGO-LATROBE 47721 is a 21/64" (0.3281 inch) jobber-length drill bit with a 135° split point and straw/bronze cobalt finish. It is a NAS-spec cobalt bit for aerospace use, with manufacturer part number 47721.

Where to buy CHICAGO-LATROBE 47721 drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 47721 drill bits worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

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

Select a NAS-spec cobalt jobber bit like the CHICAGO-LATROBE 47721 for aerospace-grade materials. The 135° split point aids self-centering on hard alloys. Match the diameter (21/64") to your hole size and ensure the bit is sharp for precision 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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