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CHICAGO-LATROBE 21/64" Solid Carbide Screw-Machine Length Drill Bit - General Purpose Solid Carbide Screw-Machine Length Drill Bits
CHICAGO-LATROBEGeneral Purpose Solid Carbide Screw-Machine Length Drill Bits

CHICAGO-LATROBE 21/64" Solid Carbide Screw-Machine Length Drill Bit

CHICAGO-LATROBE General Purpose Solid Carbide Screw-Machine Length Drill Bits.

SKU 3G-OTH-194506

Brand
CHICAGO-LATROBE
Item
21/64" Solid Carbide Screw-Machine Length Drill Bit
Part Number
78717
Category
General Purpose Solid Carbide Screw-Machine Length Drill Bits
Available to Order
Also known as:78717CHICAGO-LATROBE
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
78717

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

Product Description

CHICAGO-LATROBE General Purpose Solid Carbide Screw-Machine Length Drill Bits.

Frequently Asked Questions

What is the CHICAGO-LATROBE 78717 screw machine drill bit used for?

The CHICAGO-LATROBE 78717 is a general purpose solid carbide screw-machine length drill bit used for precision hole drilling in metalworking. Its 118° 4-facet point reduces thrust and improves chip evacuation, making it suitable for automated machining centers and manual applications across industrial manufacturing.

What are the specifications of the CHICAGO-LATROBE 78717 drill bit?

The CHICAGO-LATROBE 78717 is a 21/64" (0.3281 inch) solid carbide screw-machine length drill bit with a 118° 4-facet point. It is designed for general purpose drilling in ferrous and non-ferrous materials. The carbide construction provides hardness and wear resistance for extended tool life in production environments.

Where to buy CHICAGO-LATROBE 78717 drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 78717 drill bits worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this solid carbide screw-machine length drill bit.

How to select the correct CHICAGO-LATROBE screw machine drill bit?

Select the CHICAGO-LATROBE 78717 for drilling holes requiring a 21/64" diameter in materials like steel, stainless steel, and cast iron. The 118° 4-facet point is ideal for general purpose applications. Ensure your machine spindle speed and feed rate match carbide tooling recommendations to avoid chipping and maximize tool life.

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 general purpose solid carbide screw-machine 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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This 1/4" diameter solid carbide screw-machine length drill bit features a 118° 4-facet point for precise centering and reduced thrust. Designed for general-purpose drilling in production environments, it is suitable for high-speed automated machining of ferrous and non-ferrous materials. The carbide construction provides extended tool life in repetitive drilling operations
CHICAGO-LATROBE
This 1/4" diameter solid carbide screw-machine length drill bit features a 118° 4-facet point for precise centering and reduced thrust. Designed for general-purpose drilling in production environments, it is suitable for high-speed automated machining of ferrous and non-ferrous materials. The carbide construction provides extended tool life in repetitive drilling operations

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