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CHICAGO-LATROBE 11/64" Left-Hand Cobalt Jobber-Length Drill Bit - Left-Hand Cobalt Jobber-Length Drill Bits
CHICAGO-LATROBELeft-Hand Cobalt Jobber-Length Drill Bits

CHICAGO-LATROBE 11/64" Left-Hand Cobalt Jobber-Length Drill Bit

The CHICAGO-LATROBE Jobber Length Drill Bit (MPN 46511) is a 11/64" left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze cobalt finish. It is designed for drilling applications requiring…

SKU 3G-OTH-251061

Brand
CHICAGO-LATROBE
Item
11/64" Left-Hand Cobalt Jobber-Length Drill Bit
Part Number
46511
Category
Left-Hand Cobalt Jobber-Length Drill Bits
Available to Order
Also known as:46511CHICAGO-LATROBE
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
46511
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 46511) is a 11/64" left-hand cobalt jobber-length drill bit with a 135° split point and straw/bronze cobalt finish. It is designed for drilling applications requiring left-hand rotation, with a diameter of 0.1719 inches.

Frequently Asked Questions

What is the CHICAGO-LATROBE 46511 drill bit used for?

The CHICAGO-LATROBE 46511 is a left-hand cobalt jobber-length drill bit used for drilling into hardened metals and stainless steel. Its 135° split point reduces walking and improves cutting accuracy. Left-hand bits are ideal for removing broken fasteners or for use in reverse-spindle applications.

What are the specifications of the CHICAGO-LATROBE 46511 drill bit?

The CHICAGO-LATROBE 46511 is a jobber-length drill bit with a diameter of 0.1719 inches (11/64"). It features a 135° split point, straw/bronze cobalt finish, and left-hand rotation. The manufacturer part number is 46511. It is designed for high-speed drilling in tough materials.

Where to buy CHICAGO-LATROBE 46511 drill bits worldwide?

3G Electric supplies the CHICAGO-LATROBE 46511 drill bit worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine CHICAGO-LATROBE tooling to any country.

How to select the correct left-hand drill bit for removing broken bolts?

For removing broken bolts, select a left-hand cobalt drill bit like the CHICAGO-LATROBE 46511. The 135° split point helps start the hole without walking. Use a drill with reverse rotation and apply cutting oil. The cobalt alloy withstands heat from drilling hardened steel. Always match bit diameter to the fastener core size.

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
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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
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