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KEO Countersink: 100°, 6 Flute, 7/8 in Body Dia - Smooth-Finish Six-Flute Countersinks
KEOSmooth-Finish Six-Flute Countersinks

KEO Countersink: 100°, 6 Flute, 7/8 in Body Dia

KEO Smooth-Finish Six-Flute Countersinks.

SKU 3G-OTH-188278

Also listed as: 919000428 · 919 000 428

Brand
KEO
Item
Countersink: 100°, 6 Flute, 7/8 in Body Dia
Category
Smooth-Finish Six-Flute Countersinks
Available to Order
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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
919-000-428

Technical Documents

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

Product Description

KEO Smooth-Finish Six-Flute Countersinks.

Frequently Asked Questions

What is the KEO 100° 6-flute countersink used for?

The KEO 100° 6-flute countersink is used for creating smooth, burr-free 100° countersunk holes in metal, plastic, and wood. Its six-flute design reduces chatter and vibration, making it ideal for precision deburring and chamfering in aerospace, automotive, and general machining applications.

What are the specifications of the KEO 919-000-428 countersink?

The KEO 919-000-428 is a 100° countersink with six flutes and a 7/8 in body diameter, made from high-speed steel. It is part of KEO's Smooth-Finish Six-Flute Countersinks line, designed for clean, chatter-free operation. The manufacturer part number is 919-000-428.

Where to buy the KEO 919-000-428 countersink worldwide?

You can source the KEO 919-000-428 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 supply KEO cutting tools to procurement teams and engineers globally.

How to select the right KEO countersink for your application?

To select the right KEO countersink, match the included angle (e.g., 100°) to your fastener's head angle, and choose flute count based on material: 6-flute designs like the 919-000-428 reduce chatter in harder metals. Body diameter should clear the hole size. For high-speed steel tools, use moderate speeds and coolant for best results.

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.

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KEO Countersink: 100°, 6 Flute, 5/8 in Body Dia, High Speed Steel (MPN 919-000-424)
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KEO Countersink: 100°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, High Speed Steel (MPN 919-000-434)
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KEO Countersink: 100°, 6 Flute, 3/4 in Body Dia, High Speed Steel (MPN 919-000-426)
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KEO Countersink: 100°, 6 Flute, 3/4 in Body Dia, High Speed Steel (MPN 919-000-426)

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