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

3G Electric
RFQ CartGet a QuoteSign inSign up
KEO 120° Smooth-Finish Six-Flute Countersink, 3 in Body Dia, 1 in Shank, Cobalt - Smooth-Finish Six-Flute Countersinks
KEOSmooth-Finish Six-Flute Countersinks

KEO 120° Smooth-Finish Six-Flute Countersink, 3 in Body Dia, 1 in Shank, Cobalt

KEO Smooth-Finish Six-Flute Countersinks.

SKU 3G-OTH-188175

Brand
KEO
Item
120° Smooth-Finish Six-Flute Countersink, 3 in Body Dia, 1 in Shank, Cobalt
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
55617

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

KEO Smooth-Finish Six-Flute Countersinks.

Frequently Asked Questions

What is a KEO 6-flute countersink used for?

The KEO 6-flute countersink is used for deburring and countersinking holes in metal, producing a smooth finish. Its six-flute design reduces chatter and vibration, making it ideal for precision work in machining and fabrication across industries like automotive and aerospace.

What are the specifications of the KEO countersink 55617?

The KEO countersink model 55617 has a 3-inch body diameter and a 1-inch shank, made from cobalt for durability. It features 120° angle and 6 flutes for smooth finishing. This is a smooth-finish six-flute countersink from KEO.

Where to buy KEO countersink 55617 worldwide?

3G Electric supplies the KEO countersink 55617 worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver this cobalt countersink to your facility, ensuring compliance with international shipping requirements.

How to select the right KEO countersink for metalworking?

Select a KEO countersink based on hole size and material. For steel or hard alloys, choose cobalt like the 55617 with 120° angle. Match body diameter to your workpiece and shank to your tool holder. Six-flute designs minimize vibration for smoother finishes.

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
This 120° countersink features six flutes for smooth, burr-free chamfering on drilled holes. Constructed from cobalt steel for heat resistance, it has a 2-1/2 in body diameter and a 1 in shank. Suitable for deburring and countersinking in metalworking applications
KEO
This 120° countersink features six flutes for smooth, burr-free chamfering on drilled holes. Constructed from cobalt steel for heat resistance, it has a 2-1/2 in body diameter and a 1 in shank. Suitable for deburring and countersinking in metalworking applications
This six-flute countersink produces smooth, burr-free 120° chamfers on drilled holes. The flute design reduces chatter and vibration for precision deburring and countersinking in metal. Made from cobalt steel for heat resistance. Body diameter 1-1/2 in, shank 3/4 in
KEO
This six-flute countersink produces smooth, burr-free 120° chamfers on drilled holes. The flute design reduces chatter and vibration for precision deburring and countersinking in metal. Made from cobalt steel for heat resistance. Body diameter 1-1/2 in, shank 3/4 in
This countersink features a 120° included angle and six flutes for smooth, burr-free chamfering on drilled holes. The cobalt construction supports use on hard materials such as hardened steels and stainless alloys. Body diameter is 1 inch
KEO
This countersink features a 120° included angle and six flutes for smooth, burr-free chamfering on drilled holes. The cobalt construction supports use on hard materials such as hardened steels and stainless alloys. Body diameter is 1 inch
This six-flute countersink with a 120° included angle produces smooth, chatter-free chamfers and countersinks in metal. The cobalt steel construction offers heat resistance for extended tool life. Suitable for use in drill presses and handheld tools, it is commonly employed in machining and fabrication to prepare holes for fasteners
KEO
This six-flute countersink with a 120° included angle produces smooth, chatter-free chamfers and countersinks in metal. The cobalt steel construction offers heat resistance for extended tool life. Suitable for use in drill presses and handheld tools, it is commonly employed in machining and fabrication to prepare holes for fasteners
This countersink features a 120° included angle and six flutes to reduce chatter and vibration during operation. The cobalt steel construction provides heat resistance for use on ferrous and non-ferrous metals. It is suited for deburring and countersinking applications in general machining
KEO
This countersink features a 120° included angle and six flutes to reduce chatter and vibration during operation. The cobalt steel construction provides heat resistance for use on ferrous and non-ferrous metals. It is suited for deburring and countersinking applications in general machining
This countersink is designed for creating smooth, burr-free 120° chamfers on drilled holes in metal. Its six-flute cobalt construction provides chatter-free operation and a fine finish. Suitable for use in drill presses, milling machines, or handheld drills for precision countersinking
KEO
This countersink is designed for creating smooth, burr-free 120° chamfers on drilled holes in metal. Its six-flute cobalt construction provides chatter-free operation and a fine finish. Suitable for use in drill presses, milling machines, or handheld drills for precision countersinking

More from KEO

View all KEO parts →
This 120° countersink features six flutes for smooth deburring and chamfering of holes in metal. The AlTiN-coated cobalt construction provides heat resistance and extended tool life in high-speed machining of hardened steels and alloys. Suitable for general industrial applications requiring a clean, finished edge
KEO
This 120° countersink features six flutes for smooth deburring and chamfering of holes in metal. The AlTiN-coated cobalt construction provides heat resistance and extended tool life in high-speed machining of hardened steels and alloys. Suitable for general industrial applications requiring a clean, finished edge
This 60° countersink features a six-flute design for smooth, burr-free chamfering and deburring in metal, plastic, and wood. The AlTiN coating reduces heat buildup and improves surface finish. Suitable for precision machining and industrial manufacturing applications
KEO
This 60° countersink features a six-flute design for smooth, burr-free chamfering and deburring in metal, plastic, and wood. The AlTiN coating reduces heat buildup and improves surface finish. Suitable for precision machining and industrial manufacturing applications
This 100° countersink features six flutes and an AlTiN-coated high-speed steel body for producing smooth, burr-free chamfers. It is suited for deburring and countersinking holes in metalworking applications such as machining and fabrication
KEO
This 100° countersink features six flutes and an AlTiN-coated high-speed steel body for producing smooth, burr-free chamfers. It is suited for deburring and countersinking holes in metalworking applications such as machining and fabrication
This six-flute countersink produces smooth, burr-free chamfered holes in metal, plastic, or wood. The 100° angle is suited for precision countersinking in aerospace and automotive applications. Made from AlTiN-coated high speed steel for extended tool life
KEO
This six-flute countersink produces smooth, burr-free chamfered holes in metal, plastic, or wood. The 100° angle is suited for precision countersinking in aerospace and automotive applications. Made from AlTiN-coated high speed steel for extended tool life
This six-flute countersink produces smooth, burr-free chamfered holes in metal, plastic, and composite materials. The AlTiN coating extends tool life in abrasive or high-temperature applications. Body diameter is 3/8 in
KEO
This six-flute countersink produces smooth, burr-free chamfered holes in metal, plastic, and composite materials. The AlTiN coating extends tool life in abrasive or high-temperature applications. Body diameter is 3/8 in
This KEO countersink features a 100° included angle and six flutes for smooth, chatter-free cutting. The 2-inch body diameter and 3/4-inch shank suit standard toolholders. Cobalt construction provides heat resistance for machining hardened steels and stainless alloys. Used to create chamfered recesses for flat-head screws in metalworking
KEO
This KEO countersink features a 100° included angle and six flutes for smooth, chatter-free cutting. The 2-inch body diameter and 3/4-inch shank suit standard toolholders. Cobalt construction provides heat resistance for machining hardened steels and stainless alloys. Used to create chamfered recesses for flat-head screws in metalworking
This 90° countersink features six flutes for chatter-free operation, producing a smooth finish on drilled holes. The cobalt steel construction offers heat resistance for extended tool life. Suitable for chamfering and deburring ferrous and non-ferrous materials in machining applications
KEO
This 90° countersink features six flutes for chatter-free operation, producing a smooth finish on drilled holes. The cobalt steel construction offers heat resistance for extended tool life. Suitable for chamfering and deburring ferrous and non-ferrous materials in machining applications
This 90° countersink features six flutes for smooth, chatter-free operation when creating chamfers and countersinks in metal. The TiN-coated cobalt construction provides extended tool life. Commonly used for deburring holes and preparing surfaces for flat-head screws in machining and fabrication
KEO
This 90° countersink features six flutes for smooth, chatter-free operation when creating chamfers and countersinks in metal. The TiN-coated cobalt construction provides extended tool life. Commonly used for deburring holes and preparing surfaces for flat-head screws in machining and fabrication