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KEO Countersink: 100°, 0 Flute, 1/2 in Body Dia, 5/16 in Shank - Anti-Vibration Zero-Flute Countersinks
KEOAnti-Vibration Zero-Flute Countersinks

KEO Countersink: 100°, 0 Flute, 1/2 in Body Dia, 5/16 in Shank

The KEO Countersink: 100° is a TiN Coated Cobalt, zero-flute anti-vibration countersink with a 1/2 in body diameter and 5/16 in shank (MPN 919-000-241). This tool is designed to reduce chatter and vibration during…

SKU 3G-OTH-194773

Also listed as: 919000241 · 919 000 241

Brand
KEO
Item
Countersink: 100°, 0 Flute, 1/2 in Body Dia, 5/16 in Shank
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
919-000-241
Type
TiN Coated Cobalt
Flute
0
Shank
5/16 in
Body Dia
1/2 in

Technical Documents

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

Product Description

The KEO Countersink: 100° is a TiN Coated Cobalt, zero-flute anti-vibration countersink with a 1/2 in body diameter and 5/16 in shank (MPN 919-000-241). This tool is designed to reduce chatter and vibration during countersinking operations, delivering clean, precise results in industrial machining applications.

Frequently Asked Questions

What is the KEO 100° countersink used for?

The KEO 100° countersink is used to create a conical recess for flat-head screws in metalworking and machining applications. Its zero-flute, anti-vibration design reduces chatter and improves surface finish on materials like steel and stainless steel, making it ideal for precision deburring and countersinking in industrial manufacturing.

What are the specifications of the KEO 919-000-241 countersink?

The KEO 919-000-241 is a 100° countersink with a 1/2 in body diameter and a 5/16 in shank. It has zero flutes, is made of cobalt steel with a TiN coating, and is designed for anti-vibration performance. This tool is suitable for creating precise countersinks in hard metals and is supplied by 3G Electric.

Where to buy the KEO 919-000-241 countersink worldwide?

You can source the KEO 919-000-241 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 this KEO tool as part of our extensive sourcing network.

How to select the right KEO countersink for your application?

Select a KEO countersink based on the screw head angle (e.g., 100° for metric flat-head screws), material hardness, and desired finish. For hard metals, choose a TiN-coated cobalt variant like the 919-000-241 to reduce wear. Match the body diameter to the hole size and ensure the shank fits your tool holder. 3G Electric can advise on specifications.

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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