Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

KEO Countersink: 110°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank - Smooth-Finish Six-Flute Countersinks
KEOSmooth-Finish Six-Flute Countersinks

KEO Countersink: 110°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank

The KEO Countersink: 110° is a Smooth-Finish Six-Flute Countersink (SKU 3G-OTH-188381) with a 1 3/4 in body diameter and 3/4 in shank, featuring TiN Coated Cobalt construction (MPN 55594-TiN). This OEM KEO tool is…

SKU 3G-OTH-188381

Also listed as: 55594TiN · 55594 TiN

Brand
KEO
Item
Countersink: 110°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank
Category
Smooth-Finish Six-Flute Countersinks
Available to Order
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.
Worldwide Shipping
Air & sea freight
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
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

KEO
Manufacturer Part Number
55594-TiN
Type
TiN Coated Cobalt
Flute
6
Shank
3/4 in
Body Dia
1 3/4 in

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

KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Countersink: 110° is a Smooth-Finish Six-Flute Countersink (SKU 3G-OTH-188381) with a 1 3/4 in body diameter and 3/4 in shank, featuring TiN Coated Cobalt construction (MPN 55594-TiN). This OEM KEO tool is designed for producing smooth, 110° countersunk holes in industrial applications.

Frequently Asked Questions

What is a KEO 6-flute countersink used for?

A KEO 6-flute countersink creates smooth, chatter-free 110° countersunk holes in metal. It is ideal for deburring and chamfering in machining, automotive, and aerospace applications. The TiN-coated cobalt construction provides heat resistance and extended tool life.

What are the specifications of the KEO 55594-TiN countersink?

The KEO 55594-TiN is a 110°, 6-flute countersink with a 1 3/4 in body diameter and a 3/4 in shank. It is made from TiN-coated cobalt for durability. This smooth-finish design reduces vibration and delivers a clean surface on ferrous and non-ferrous materials.

Where to buy KEO countersinks worldwide?

3G Electric supplies KEO countersinks like the 55594-TiN to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other industrial cutting tools across 14 departments.

How to select the right KEO countersink for your job?

Match the countersink body diameter to your fastener head size and choose the correct angle (110° for standard hardware). For hard metals, select TiN-coated cobalt tools like the KEO 55594-TiN. Ensure the shank fits your drill chuck or collet for stable operation.

Used in

Common applications for KEO
Metalworking — KEO plain-tip center drills for creating accurate starting points in lathe operations
Automotive manufacturing — KEO bell-tip center drills for countersinking holes in engine components
Aerospace machining — KEO radius-tip center drills for reducing stress risers in critical parts
General machining — KEO keyseat cutters for milling keyways in shafts and gears
Tool and die making — KEO TiN-coated center drills for extended tool life in hardened steels
Precision engineering — KEO cobalt center drills for high-temperature alloy applications

KEO Products

3G Electric supplies KEO smooth-finish six-flute countersinks. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
KEO Countersink: 110°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 55593-TiN)
KEO
KEO Countersink: 110°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 55593-TiN)
KEO Countersink: 110°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank, TiN Coated Cobalt (MPN 55596-TiN)
KEO
KEO Countersink: 110°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank, TiN Coated Cobalt (MPN 55596-TiN)
KEO Countersink: 110°, 6 Flute, 2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 55595-TiN)
KEO
KEO Countersink: 110°, 6 Flute, 2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 55595-TiN)
KEO Countersink: 110°, 6 Flute, 3 in Body Dia, 1 in Shank, TiN Coated Cobalt (MPN 55597-TiN)
KEO
KEO Countersink: 110°, 6 Flute, 3 in Body Dia, 1 in Shank, TiN Coated Cobalt (MPN 55597-TiN)
KEO Countersink: 110°, 6 Flute, 7/8 in Body Dia, TiN Coated Cobalt (MPN 55590-TiN)
KEO
KEO Countersink: 110°, 6 Flute, 7/8 in Body Dia, TiN Coated Cobalt (MPN 55590-TiN)
KEO Countersink: 100°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank, TiN Coated Cobalt (MPN 55576-TiN)
KEO
KEO Countersink: 100°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank, TiN Coated Cobalt (MPN 55576-TiN)

More from KEO

View all KEO parts
KEO Countersink: 60°, 6 Flute, 3/16 in Body Dia, 3/16 in Shank, TiN Coated Carbide (MPN 919-002-989)
KEO
KEO Countersink: 60°, 6 Flute, 3/16 in Body Dia, 3/16 in Shank, TiN Coated Carbide (MPN 919-002-989)
KEO Countersink: 100°, 6 Flute, 3/16 in Body Dia, 3/16 in Shank, AlTiN Coated Cobalt (MPN 919-002-515)
KEO
KEO Countersink: 100°, 6 Flute, 3/16 in Body Dia, 3/16 in Shank, AlTiN Coated Cobalt (MPN 919-002-515)
KEO Countersink: 120°, 6 Flute, 3/16 in Body Dia, 3/16 in Shank, AlTiN Coated Cobalt (MPN 919-002-479)
KEO
KEO Countersink: 120°, 6 Flute, 3/16 in Body Dia, 3/16 in Shank, AlTiN Coated Cobalt (MPN 919-002-479)
KEO Countersink: 100°, 6 Flute, 1/8 in Body Dia, 1/8 in Shank, TiAlN Coated Carbide (MPN 55813-TiALN)
KEO
KEO Countersink: 100°, 6 Flute, 1/8 in Body Dia, 1/8 in Shank, TiAlN Coated Carbide (MPN 55813-TiALN)
KEO Countersink: 120°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 919-000-900)
KEO
KEO Countersink: 120°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 919-000-900)
KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, AlTiN Coated High Speed Steel (MPN 919-002-699)
KEO
KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, AlTiN Coated High Speed Steel (MPN 919-002-699)
KEO Countersink: 90°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 919-000-792)
KEO
KEO Countersink: 90°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 919-000-792)
KEO Countersink: 90°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 919-000-794)
KEO
KEO Countersink: 90°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 919-000-794)