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CHICAGO-LATROBE #21 Left-Hand HSS Jobber-Length Drill Bit - Left-Hand High-Speed Steel Jobber-Length Drill Bits
CHICAGO-LATROBELeft-Hand High-Speed Steel Jobber-Length Drill Bits

CHICAGO-LATROBE #21 Left-Hand HSS Jobber-Length Drill Bit

CHICAGO-LATROBE Left-Hand High-Speed Steel Jobber-Length Drill Bits.

SKU 3G-OTH-235708

Brand
CHICAGO-LATROBE
Item
#21 Left-Hand HSS Jobber-Length Drill Bit
Category
Left-Hand High-Speed Steel Jobber-Length Drill Bits
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
44491

Technical Documents

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

CHICAGO-LATROBE Left-Hand High-Speed Steel Jobber-Length Drill Bits.

Frequently Asked Questions

What is a Chicago-Latrobe #21 left-hand drill bit used for?

A Chicago-Latrobe #21 left-hand drill bit is used to drill holes in metal when the drill rotation is counterclockwise, commonly for extracting broken bolts or screws. The 118° point and HSS construction suit general-purpose drilling in steel, aluminum, and other alloys.

What are the specifications of the Chicago-Latrobe 44491 drill bit?

The Chicago-Latrobe 44491 is a #21 jobber-length drill bit with a 0.1590-inch diameter, 118° point angle, and high-speed steel construction. It features a left-hand spiral for counterclockwise rotation. The manufacturer part number is 44491, and it is designed for precision drilling in metalworking applications.

Where to buy Chicago-Latrobe 44491 drill bits worldwide?

You can source Chicago-Latrobe 44491 drill bits worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this left-hand HSS jobber-length drill bit.

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

To select a left-hand drill bit for bolt extraction, match the bit diameter to the broken fastener's minor thread diameter. A #21 size (0.1590 inch) suits small bolts. Use a Chicago-Latrobe HSS bit with a 118° point for general steel. Ensure your drill runs in reverse (counterclockwise) to engage the left-hand spiral.

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 left-hand high-speed steel 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Left-hand high-speed steel jobber-length drill bit with a 118° point angle. Designed for drilling in metal, steel, aluminum, and plastics. Commonly used for removing broken bolts or screws in maintenance, automotive, and machine shop applications
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Left-hand high-speed steel jobber-length drill bit with a 118° point angle. Designed for drilling in metal, steel, aluminum, and plastics. Commonly used for removing broken bolts or screws in maintenance, automotive, and machine shop applications
Left-hand drill bit with a 118° point angle, made of high-speed steel. Designed for drilling holes in metal, commonly used to remove broken bolts or screws. Suitable for general-purpose drilling in ferrous and non-ferrous materials in maintenance, automotive, and industrial repair applications
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Left-hand drill bit with a 118° point angle, made of high-speed steel. Designed for drilling holes in metal, commonly used to remove broken bolts or screws. Suitable for general-purpose drilling in ferrous and non-ferrous materials in maintenance, automotive, and industrial repair applications
Left-hand high-speed steel jobber-length drill bit with a 118° point angle. Designed for drilling in metal, particularly for removing broken bolts or screws in reverse-rotation applications. Suitable for general-purpose machining and maintenance tasks
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Left-hand high-speed steel jobber-length drill bit with a 118° point angle. Designed for drilling in metal, particularly for removing broken bolts or screws in reverse-rotation applications. Suitable for general-purpose machining and maintenance tasks
This left-hand jobber-length drill bit is made of high-speed steel with a 118° point angle, designed for drilling in metal when using reverse rotation. Commonly used to remove broken bolts or screws in automotive repair and general maintenance. The #18 size has a 0.1695-inch diameter
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This left-hand jobber-length drill bit is made of high-speed steel with a 118° point angle, designed for drilling in metal when using reverse rotation. Commonly used to remove broken bolts or screws in automotive repair and general maintenance. The #18 size has a 0.1695-inch diameter
Left-hand high-speed steel jobber-length drill bit with a #31 wire gauge diameter of 0.1200 inches and a 118° point angle. Designed for drilling in ferrous and non-ferrous metals, commonly used for screw extraction and applications requiring reverse rotation. The left-hand spiral helps prevent bit breakage when backing out fasteners
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Left-hand high-speed steel jobber-length drill bit with a #31 wire gauge diameter of 0.1200 inches and a 118° point angle. Designed for drilling in ferrous and non-ferrous metals, commonly used for screw extraction and applications requiring reverse rotation. The left-hand spiral helps prevent bit breakage when backing out fasteners
Left-hand high-speed steel jobber-length drill bit with a #51 wire gauge diameter of 0.0670 inches and a 118° point angle. Designed for reverse-rotation applications such as screw extraction and drilling in metal, wood, and plastic. Suitable for use in drill presses and handheld tools
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Left-hand high-speed steel jobber-length drill bit with a #51 wire gauge diameter of 0.0670 inches and a 118° point angle. Designed for reverse-rotation applications such as screw extraction and drilling in metal, wood, and plastic. Suitable for use in drill presses and handheld tools

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Left-hand high-speed steel jobber-length drill bit with a #64 wire gauge diameter of 0.0360 inches and a 118° point angle. Designed for drilling small-diameter holes in ferrous and non-ferrous materials, commonly used in screw extraction and reverse-rotation applications
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Left-hand high-speed steel jobber-length drill bit with a #64 wire gauge diameter of 0.0360 inches and a 118° point angle. Designed for drilling small-diameter holes in ferrous and non-ferrous materials, commonly used in screw extraction and reverse-rotation applications
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Left-hand jobber-length drill bit made of high-speed steel (HSS) with a #4 wire gauge diameter of 0.2090 inches and a 118° point angle. Designed for reverse rotation drilling, commonly used to remove broken bolts or screws in metalworking and maintenance applications
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Left-hand high-speed steel jobber-length drill bit with a #57 size (0.0430" diameter) and 118° point angle. Designed for drilling in reverse rotation, commonly used to extract broken fasteners or for tapping operations in ferrous and non-ferrous materials. Suitable for general machining, maintenance, and repair applications
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Left-hand high-speed steel jobber-length drill bit with a #57 size (0.0430" diameter) and 118° point angle. Designed for drilling in reverse rotation, commonly used to extract broken fasteners or for tapping operations in ferrous and non-ferrous materials. Suitable for general machining, maintenance, and repair applications
Left-hand spiral drill bit for drilling holes where reverse rotation is required, such as removing broken fasteners or in tapping operations. Made from high-speed steel with a 118° point angle. Suitable for general-purpose drilling in ferrous and non-ferrous materials
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Left-hand spiral drill bit for drilling holes where reverse rotation is required, such as removing broken fasteners or in tapping operations. Made from high-speed steel with a 118° point angle. Suitable for general-purpose drilling in ferrous and non-ferrous materials
Left-hand drill bit designed for reverse-rotation drilling applications, commonly used in extracting broken fasteners or for tapping operations. Constructed from high-speed steel with a 118° point angle, suitable for general-purpose machining and maintenance work on ferrous and non-ferrous metals
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Left-hand drill bit designed for reverse-rotation drilling applications, commonly used in extracting broken fasteners or for tapping operations. Constructed from high-speed steel with a 118° point angle, suitable for general-purpose machining and maintenance work on ferrous and non-ferrous metals
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This #26 left-hand drill bit is made of high-speed steel with a 118° point angle, designed for drilling in ferrous and non-ferrous materials. The left-hand spiral enables reverse rotation for tasks such as removing broken bolts or screws. Suitable for general-purpose machining and maintenance applications
Left-hand spiral drill bit designed for reverse-rotation drilling applications. Commonly used to extract broken bolts or screws by drilling in reverse, or in machinery with left-hand spindle rotation. Made of high-speed steel with a 118° point angle, jobber length, and #11 size (0.1910" diameter)
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