We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
KEO Countersink: 60°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank - Smooth-Finish Six-Flute Countersinks
KEOSmooth-Finish Six-Flute Countersinks

KEO Countersink: 60°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank

SKU 3G-OTH-188203

Brand
KEO
Item
Countersink: 60°, 6 Flute, 2 1/2 in Body Dia, 1 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

Technical Specifications

KEO
Manufacturer Part Number
55516
View Full Spec Sheet

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

Frequently Asked Questions

What is the KEO 55516 countersink used for?

The KEO 55516 is a 60° six-flute countersink designed for producing smooth, burr-free chamfers on drilled holes in metal. It is commonly used in machining, tool and die, and aerospace applications where a fine surface finish is required on steel, stainless steel, and other alloys.

What are the specifications of the KEO 55516 countersink?

The KEO 55516 is a 60° countersink with six flutes, a 2 1/2 in body diameter, and a 1 in shank. It is made from cobalt steel for heat resistance and durability. The manufacturer part number is 55516, and it is designed for smooth-finish applications in industrial metalworking.

Where to buy the KEO 55516 countersink worldwide?

You can source the KEO 55516 countersink through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this KEO tool.

How to select the correct KEO countersink for your application?

Select a KEO countersink based on the required chamfer angle (e.g., 60° for standard screw heads), material hardness (cobalt for tough alloys), and hole size. The 55516 with a 2 1/2 in body suits larger holes. Match shank diameter to your tool holder and ensure flute count matches finish needs.

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 →

Similar products

Matched by specification & description
KEO Countersink: 60°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-719). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 60°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-719). Key specifications — attr1301035: KEO.
KEO Countersink: 60°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-723). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 60°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-723). Key specifications — attr1301035: KEO.
KEO Countersink: 60°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-721). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 60°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-721). Key specifications — attr1301035: KEO.
KEO Countersink: 60°, 6 Flute, 1 in Body Dia, Cobalt (MPN 919-000-715). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 60°, 6 Flute, 1 in Body Dia, Cobalt (MPN 919-000-715). Key specifications — attr1301035: KEO.
KEO Countersink: 60°, 6 Flute, 7/8 in Body Dia, Cobalt (MPN 919-000-713). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 60°, 6 Flute, 7/8 in Body Dia, Cobalt (MPN 919-000-713). Key specifications — attr1301035: KEO.
KEO Countersink: 60°, 6 Flute, 3/4 in Body Dia, Cobalt (MPN 919-000-711). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 60°, 6 Flute, 3/4 in Body Dia, Cobalt (MPN 919-000-711). Key specifications — attr1301035: KEO.

More from KEO

View all KEO parts →
KEO Countersink: 120°, 6 Flute, 7/8 in Body Dia, AlTiN Coated Cobalt (MPN 919-002-470). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 120°, 6 Flute, 7/8 in Body Dia, AlTiN Coated Cobalt (MPN 919-002-470). Key specifications — attr1301035: KEO.
KEO Countersink: 60°, 6 Flute, 5/8 in Body Dia, AlTiN Coated High Speed Steel (MPN 919-002-764). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 60°, 6 Flute, 5/8 in Body Dia, AlTiN Coated High Speed Steel (MPN 919-002-764). Key specifications — attr1301035: KEO.
KEO Countersink: 100°, 6 Flute, 3/8 in Body Dia, AlTiN Coated High Speed Steel (MPN 919-002-710). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 100°, 6 Flute, 3/8 in Body Dia, AlTiN Coated High Speed Steel (MPN 919-002-710). Key specifications — attr1301035: KEO.
KEO Countersink: 100°, 6 Flute, 5/16 in Body Dia, AlTiN Coated High Speed Steel (MPN 919-002-711). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 100°, 6 Flute, 5/16 in Body Dia, AlTiN Coated High Speed Steel (MPN 919-002-711). Key specifications — attr1301035: KEO.
KEO Countersink: 100°, 6 Flute, 3/8 in Body Dia, AlTiN Coated Carbide (MPN 919-002-438). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 100°, 6 Flute, 3/8 in Body Dia, AlTiN Coated Carbide (MPN 919-002-438). Key specifications — attr1301035: KEO.
KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-831). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-831). Key specifications — attr1301035: KEO.
KEO Countersink: 90°, 6 Flute, 1/2 in Body Dia, Cobalt (MPN 919-000-775). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 90°, 6 Flute, 1/2 in Body Dia, Cobalt (MPN 919-000-775). Key specifications — attr1301035: KEO.
KEO Countersink: 90°, 6 Flute, 1/8 in Body Dia, 1/8 in Shank, TiN Coated Cobalt (MPN 919-000-766). Key specifications — attr1301035: KEO.
KEO
KEO Countersink: 90°, 6 Flute, 1/8 in Body Dia, 1/8 in Shank, TiN Coated Cobalt (MPN 919-000-766). Key specifications — attr1301035: KEO.