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CHICAGO-LATROBE #66 Jobber Length Drill Bit - General Purpose High-Speed Steel Jobber-Length Drill Bits
CHICAGO-LATROBEGeneral Purpose High-Speed Steel Jobber-Length Drill Bits

CHICAGO-LATROBE #66 Jobber Length Drill Bit

CHICAGO-LATROBE General Purpose High-Speed Steel Jobber-Length Drill Bits.

SKU 3G-OTH-192449

Brand
CHICAGO-LATROBE
Item
#66 Jobber Length Drill Bit
Part Number
70166
Category
General Purpose High-Speed Steel Jobber-Length Drill Bits
Available to Order
Also known as:70166CHICAGO-LATROBE
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
70166

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

Product Description

CHICAGO-LATROBE General Purpose High-Speed Steel Jobber-Length Drill Bits.

Frequently Asked Questions

What is the CHICAGO-LATROBE #66 jobber length drill bit used for?

This TiN-coated HSS drill bit is designed for general-purpose drilling in metals, plastics, and wood. The #66 wire-gauge size (0.0330 inch) suits precision small-hole applications in machining, electrical, and instrumentation work.

What are the specifications of the CHICAGO-LATROBE 70166 drill bit?

The CHICAGO-LATROBE 70166 is a #66 jobber length drill bit with a 118° point angle, made from high-speed steel with a titanium nitride (TiN) coating. The drill diameter is 0.0330 inch. It is a general-purpose tool for small-hole drilling.

Where to buy CHICAGO-LATROBE drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE drill bits to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders. Contact us to source this #66 TiN-coated HSS bit or other industrial tooling needs.

How to select the right jobber length drill bit for small holes?

For small holes like #66 (0.0330 inch), choose a jobber length bit with a 118° point for general materials. TiN coating reduces friction and extends tool life in ferrous metals. Match the bit material to your workpiece—HSS works for most metals and plastics.

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 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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