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

KEO Countersink: 90°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank - Four-Flute Machine Countersinks
KEOFour-Flute Machine Countersinks

KEO Countersink: 90°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank

The KEO Countersink: 90° is a four-flute machine countersink with a TiN coated cobalt construction, featuring a 1 3/4 in body diameter and a 3/4 in shank (MPN 917-000-298). This tool is designed for precision…

SKU 3G-OTH-185957

Also listed as: 917000298 · 917 000 298

Brand
KEO
Item
Countersink: 90°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank
Category
Four-Flute Machine 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
917-000-298
Type
TiN Coated Cobalt
Flute
4
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: 90° is a four-flute machine countersink with a TiN coated cobalt construction, featuring a 1 3/4 in body diameter and a 3/4 in shank (MPN 917-000-298). This tool is designed for precision chamfering and deburring operations in industrial machining applications.

Frequently Asked Questions

What is the KEO 4-flute countersink used for?

The KEO 90° 4-flute countersink is used for deburring and countersinking holes in metal, wood, and plastic. Its TiN-coated cobalt construction provides heat resistance and durability for high-speed machining. Common applications include aerospace, automotive, and general manufacturing where precise 90° chamfers are required.

What are the specifications of the KEO countersink 917-000-298?

The KEO countersink model 917-000-298 has a 90° angle, 4 flutes, 1 3/4 in body diameter, and 3/4 in shank. It is made of TiN-coated cobalt for extended tool life. This four-flute machine countersink is designed for consistent chip evacuation and smooth finishes in production environments.

Where to buy KEO countersinks worldwide?

3G Electric supplies KEO countersinks worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the KEO 917-000-298 or other KEO tooling. We source and deliver to any country.

How to select the right KEO countersink for your application?

Select a KEO countersink based on hole size, material, and desired chamfer angle. For general deburring, a 90° 4-flute design like the 917-000-298 works on steel, aluminum, and plastics. Match the shank diameter (3/4 in) to your tool holder. TiN coating improves wear resistance in abrasive materials.

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 four-flute machine 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: 90°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-296)
KEO
KEO Countersink: 90°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-296)
KEO Countersink: 90°, 4 Flute, 2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-300)
KEO
KEO Countersink: 90°, 4 Flute, 2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-300)
KEO Countersink: 90°, 4 Flute, 1 1/4 in Body Dia, TiN Coated Cobalt (MPN 917-000-294)
KEO
KEO Countersink: 90°, 4 Flute, 1 1/4 in Body Dia, TiN Coated Cobalt (MPN 917-000-294)
KEO Countersink: 82°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-288)
KEO
KEO Countersink: 82°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-288)
KEO Countersink: 60°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-282)
KEO
KEO Countersink: 60°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-282)
KEO Countersink: 60°, 4 Flute, 1 1/4 in Body Dia, TiN Coated Cobalt (MPN 917-000-278)
KEO
KEO Countersink: 60°, 4 Flute, 1 1/4 in Body Dia, TiN Coated Cobalt (MPN 917-000-278)

More from KEO

View all KEO parts
KEO Countersink: 82°, 4 Flute, 1 1/4 in Body Dia, TiN Coated High Speed Steel (MPN 917-000-094)
KEO
KEO Countersink: 82°, 4 Flute, 1 1/4 in Body Dia, TiN Coated High Speed Steel (MPN 917-000-094)
KEO Countersink: 82°, 4 Flute, 7/8 in Body Dia, TiN Coated Cobalt (MPN 919-000-536)
KEO
KEO Countersink: 82°, 4 Flute, 7/8 in Body Dia, TiN Coated Cobalt (MPN 919-000-536)
KEO Countersink: 60°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, AlTiN Coated Cobalt (MPN 917-000-840)
KEO
KEO Countersink: 60°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, AlTiN Coated Cobalt (MPN 917-000-840)
KEO Countersink: 82°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, Cobalt (MPN 917-000-287)
KEO
KEO Countersink: 82°, 4 Flute, 1 1/2 in Body Dia, 3/4 in Shank, Cobalt (MPN 917-000-287)
KEO Countersink: 60°, 4 Flute, 1/2 in Body Dia, TiN Coated Cobalt (MPN 919-000-520)
KEO
KEO Countersink: 60°, 4 Flute, 1/2 in Body Dia, TiN Coated Cobalt (MPN 919-000-520)
KEO Countersink: 60°, 4 Flute, 2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-284)
KEO
KEO Countersink: 60°, 4 Flute, 2 in Body Dia, 3/4 in Shank, TiN Coated Cobalt (MPN 917-000-284)
KEO Countersink: 82°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank, AlTiN Coated Cobalt (MPN 917-000-835)
KEO
KEO Countersink: 82°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank, AlTiN Coated Cobalt (MPN 917-000-835)
KEO Countersink: 60°, 4 Flute, 1/2 in Body Dia, High Speed Steel (MPN 919-000-001)
KEO
KEO Countersink: 60°, 4 Flute, 1/2 in Body Dia, High Speed Steel (MPN 919-000-001)