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KEO Countersink: 90°, 0 Flute, 3/8 in Body Dia - Anti-Vibration Zero-Flute Countersinks
KEOAnti-Vibration Zero-Flute Countersinks

KEO Countersink: 90°, 0 Flute, 3/8 in Body Dia

KEO Anti-Vibration Zero-Flute Countersinks.

SKU 3G-OTH-194825

Also listed as: 919000221 · 919 000 221

Brand
KEO
Item
Countersink: 90°, 0 Flute, 3/8 in Body Dia
Category
Anti-Vibration Zero-Flute Countersinks
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

KEO
Manufacturer Part Number
919-000-221

Technical Documents

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

Product Description

KEO Anti-Vibration Zero-Flute Countersinks.

Frequently Asked Questions

What is a KEO zero-flute countersink used for?

A KEO zero-flute countersink is used to create a conical recess for flat-head screws in metalworking. Its anti-vibration design reduces chatter, making it ideal for precision deburring and countersinking on CNC machines or manual tools. The cobalt construction suits harder materials like stainless steel.

What are the specifications of the KEO 919-000-221 countersink?

The KEO 919-000-221 is a 90° countersink with 0 flutes, a 3/8 in body diameter, and is made from cobalt. It is part of KEO's Anti-Vibration Zero-Flute Countersinks line, designed for smooth, chatter-free operation. The cobalt material provides heat resistance and durability for industrial use.

Where to buy KEO countersinks worldwide?

You can source KEO countersinks like the 919-000-221 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 times; we supply genuine KEO tooling for manufacturing and maintenance applications.

How to select the right KEO countersink for your application?

Select a KEO countersink based on the screw head angle (typically 90° for flat-head screws), material hardness (cobalt for tough alloys), and body diameter matching the screw size. Zero-flute designs reduce vibration on CNC or manual tools. For best results, match the countersink to your workpiece material and machine spindle speed.

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 anti-vibration zero-flute countersinks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
KEO Countersink: 90°, 0 Flute, 5/16 in Body Dia, Cobalt (MPN 919-000-219)
KEO
KEO Countersink: 90°, 0 Flute, 5/16 in Body Dia, Cobalt (MPN 919-000-219)
KEO Countersink: 90°, 0 Flute, 5/8 in Body Dia, Cobalt (MPN 919-000-225)
KEO
KEO Countersink: 90°, 0 Flute, 5/8 in Body Dia, Cobalt (MPN 919-000-225)
KEO Countersink: 90°, 0 Flute, 3/4 in Body Dia, Cobalt (MPN 919-000-227)
KEO
KEO Countersink: 90°, 0 Flute, 3/4 in Body Dia, Cobalt (MPN 919-000-227)
KEO Countersink: 90°, 0 Flute, 1 in Body Dia, Cobalt (MPN 919-000-229)
KEO
KEO Countersink: 90°, 0 Flute, 1 in Body Dia, Cobalt (MPN 919-000-229)
KEO Countersink: 90°, 0 Flute, 1/2 in Body Dia, 5/16 in Shank, Cobalt (MPN 919-000-223)
KEO
KEO Countersink: 90°, 0 Flute, 1/2 in Body Dia, 5/16 in Shank, Cobalt (MPN 919-000-223)
KEO Countersink: 60°, 0 Flute, 1 in Body Dia, Cobalt (MPN 919-000-195)
KEO
KEO Countersink: 60°, 0 Flute, 1 in Body Dia, Cobalt (MPN 919-000-195)

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