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3G Electric
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
Part Number
44491
Category
Left-Hand High-Speed Steel Jobber-Length Drill Bits
Available to Order
Also known as:44491CHICAGO-LATROBE
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
44491

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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.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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.
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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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Left-hand high-speed steel jobber-length drill bit with a 118° point angle and #6 wire gauge size (0.2040 in diameter). Designed for reverse rotation drilling, commonly used to remove broken bolts or screws in metal. Suitable for general-purpose drilling in steel, aluminum, and other alloys
CHICAGO-LATROBE
Left-hand high-speed steel jobber-length drill bit with a 118° point angle and #6 wire gauge size (0.2040 in diameter). Designed for reverse rotation drilling, commonly used to remove broken bolts or screws in metal. Suitable for general-purpose drilling in steel, aluminum, and other alloys

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