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CHICAGO-LATROBE 31/64" Left-Hand Cobalt Jobber-Length Drill Bit - Left-Hand Cobalt Jobber-Length Drill Bits
CHICAGO-LATROBELeft-Hand Cobalt Jobber-Length Drill Bits

CHICAGO-LATROBE 31/64" Left-Hand Cobalt Jobber-Length Drill Bit

The CHICAGO-LATROBE Jobber Length Drill Bit (MPN 46531) is a 31/64" left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze cobalt finish. 3G Electric interprets your demand for this…

SKU 3G-OTH-251067

Brand
CHICAGO-LATROBE
Item
31/64" Left-Hand Cobalt Jobber-Length Drill Bit
Part Number
46531
Category
Left-Hand Cobalt Jobber-Length Drill Bits
Available to Order
Also known as:46531CHICAGO-LATROBE
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
46531
Type
Straw/Bronze Cobalt, Left Hand
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 (MPN 46531) is a 31/64" left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze cobalt finish. 3G Electric interprets your demand for this specific OEM tool, sources it across our 14 industrial departments, and provides a quoted price with dedicated support — backed by our specialist depth in combustion, pumps, and controls.

Frequently Asked Questions

What is a CHICAGO-LATROBE 31/64" left-hand cobalt jobber drill bit used for?

This CHICAGO-LATROBE 31/64" left-hand drill bit is designed for drilling in reverse rotation, commonly used to extract broken fasteners or for applications on screw machines. The cobalt steel and 135° split point provide heat resistance and reduce walking on metal surfaces.

What are the specifications of the CHICAGO-LATROBE 46531 drill bit?

The CHICAGO-LATROBE 46531 is a jobber length drill bit with a 31/64" (0.4844") diameter, 135° split point, and straw/bronze cobalt finish. It is a left-hand design, ideal for reverse-rotation drilling. The cobalt alloy enhances durability in hard metals.

Where to buy CHICAGO-LATROBE 46531 drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 46531 left-hand cobalt drill bits to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this item.

How to select the correct left-hand drill bit for bolt extraction?

For bolt extraction, choose a left-hand drill bit like the CHICAGO-LATROBE 46531 in a size slightly smaller than the fastener. Use a 135° split point to prevent walking. Cobalt construction handles hardened steel. Apply cutting oil and run the drill in reverse at low speed.

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 left-hand cobalt jobber-length drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze finish. The 29/64" diameter bit is designed for drilling applications requiring reverse rotation, such as removing broken fasteners or drilling in hardened steels. The split point reduces thrust and eliminates the need for center punching
CHICAGO-LATROBE
Left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze finish. The 29/64" diameter bit is designed for drilling applications requiring reverse rotation, such as removing broken fasteners or drilling in hardened steels. The split point reduces thrust and eliminates the need for center punching
Left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze finish. Designed for drilling hard metals and used in screw extraction or reverse-spindle machining. 1/2" diameter
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Left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze finish. Designed for drilling hard metals and used in screw extraction or reverse-spindle machining. 1/2" diameter

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