Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
CHICAGO-LATROBE 11/64" TiN-Coated HSS Taper-Length Drill Bit - Chip-Clearing High-Speed Steel Taper-Length Drill Bits
CHICAGO-LATROBEChip-Clearing High-Speed Steel Taper-Length Drill Bits

CHICAGO-LATROBE 11/64" TiN-Coated HSS Taper-Length Drill Bit

The CHICAGO-LATROBE Taper Length Drill Bit (11/64", MPN 55243) is a TiN-coated high-speed steel chip-clearing taper-length drill bit with a 135° split point and parabolic flute design.

SKU 3G-OTH-221245

Brand
CHICAGO-LATROBE
Item
11/64" TiN-Coated HSS Taper-Length Drill Bit
Part Number
55243
Category
Chip-Clearing High-Speed Steel Taper-Length Drill Bits
Available to Order
Also known as:55243CHICAGO-LATROBE
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
55243
Type
TiN-Coated HSS, Parabolic Flute
Split Point
135°

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The CHICAGO-LATROBE Taper Length Drill Bit (11/64", MPN 55243) is a TiN-coated high-speed steel chip-clearing taper-length drill bit with a 135° split point and parabolic flute design.

Frequently Asked Questions

What is the CHICAGO-LATROBE Taper Length Drill Bit 55243 used for?

This TiN-coated HSS drill bit with a 135° split point and parabolic flute is designed for deep-hole drilling in metalworking. It efficiently clears chips in steel, stainless steel, and alloys, reducing friction and heat buildup for longer tool life in industrial machining applications.

What are the specifications of the CHICAGO-LATROBE 55243 drill bit?

The CHICAGO-LATROBE 55243 is a taper-length drill bit with a 11/64" diameter (0.1719 inch), 135° split point, TiN-coated high-speed steel, and parabolic flute design. It is engineered for chip clearing in deep-hole drilling operations across various metals.

Where to buy CHICAGO-LATROBE 55243 worldwide?

3G Electric supplies the CHICAGO-LATROBE 55243 taper-length drill bit to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this TiN-coated HSS bit to your facility, regardless of location.

How to select the right taper-length drill bit for deep-hole drilling?

For deep-hole drilling, choose a bit with a parabolic flute for efficient chip evacuation and a split point to reduce walking. The CHICAGO-LATROBE 55243's TiN coating adds lubricity and heat resistance. Match diameter and length to your material thickness and machine spindle capacity.

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.
Not sure this is the right part? Photo-identify it→

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE chip-clearing high-speed steel taper-length drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts →
This taper-length drill bit is made from TiN-coated high-speed steel with a parabolic flute design for efficient chip clearing in deep-hole drilling. The 135�° split point reduces walking and thrust, making it suitable for metalworking and industrial machining applications where precision and chip evacuation are required
CHICAGO-LATROBE
This taper-length drill bit is made from TiN-coated high-speed steel with a parabolic flute design for efficient chip clearing in deep-hole drilling. The 135° split point reduces walking and thrust, making it suitable for metalworking and industrial machining applications where precision and chip evacuation are required

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first