We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

KEO 100° Six-Flute Countersink, 7/8 in Body Diameter, Cobalt Steel - Smooth-Finish Six-Flute Countersinks
KEOSmooth-Finish Six-Flute Countersinks

KEO 100° Six-Flute Countersink, 7/8 in Body Diameter, Cobalt Steel

KEO Smooth-Finish Six-Flute Countersinks.

SKU 3G-OTH-187900

Also listed as: 919000821 · 919 000 821

Brand
KEO
Item
100° Six-Flute Countersink, 7/8 in Body Diameter, Cobalt Steel
Category
Smooth-Finish Six-Flute Countersinks
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

KEO
Manufacturer Part Number
919-000-821

Technical Documents

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

Product Description

KEO Smooth-Finish Six-Flute Countersinks.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

This KEO countersink creates smooth, burr-free 100° chamfers on drilled holes in metal. Its six-flute design reduces chatter for a finer finish, ideal for aerospace, automotive, and general machining applications where surface quality matters.

What are the specifications of the KEO 919-000-821 countersink?

The KEO 919-000-821 is a 100°, 6-flute countersink with a 7/8 in body diameter, made from cobalt steel. It is designed for smooth-finish chamfering on hard materials and is manufactured under part number 919-000-821.

Where to buy KEO countersinks worldwide?

3G Electric supplies KEO countersinks like the 919-000-821 to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine industrial tooling regardless of your location.

How to select the right KEO countersink for my application?

Match the countersink angle (100°) to your fastener head angle, and choose a body diameter (7/8 in) larger than the hole. Cobalt steel suits harder metals. For best results, use proper RPM and light feed to avoid chatter.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This KEO countersink features a 100° included angle and six flutes for smooth, chatter-free operation. The cobalt construction provides heat resistance for use on ferrous metals. With a 1-inch body diameter, it is suited for creating chamfered holes in metal workpieces
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This KEO countersink features a 100° included angle and six flutes for smooth, chatter-free operation. The cobalt construction provides heat resistance for use on ferrous metals. With a 1-inch body diameter, it is suited for creating chamfered holes in metal workpieces
This six-flute countersink features a 100° included angle and is made from cobalt for heat resistance. With a 1-1/2 in body diameter and 3/4 in shank, it is designed for creating smooth countersunk holes in metalworking applications such as preparing holes for flat-head screws or rivets
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This six-flute countersink features a 100° included angle and is made from cobalt for heat resistance. With a 1-1/2 in body diameter and 3/4 in shank, it is designed for creating smooth countersunk holes in metalworking applications such as preparing holes for flat-head screws or rivets
KEO 100° countersink with six flutes and a 1 1/4 in body diameter, made from cobalt steel for heat resistance and durability. Designed for creating smooth, chamfered recesses for flat-head screws in metalworking and machining applications, including hardened steels and alloys
KEO
KEO 100° countersink with six flutes and a 1 1/4 in body diameter, made from cobalt steel for heat resistance and durability. Designed for creating smooth, chamfered recesses for flat-head screws in metalworking and machining applications, including hardened steels and alloys
This countersink features a 100° included angle and six flutes for smooth, chatter-free operation. It is made from cobalt for use in hard materials. Typical applications include deburring and countersinking holes in metal to prepare for flush fastener seating
KEO
This countersink features a 100° included angle and six flutes for smooth, chatter-free operation. It is made from cobalt for use in hard materials. Typical applications include deburring and countersinking holes in metal to prepare for flush fastener seating
KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-831)
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KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-831)
This countersink features a 100° included angle and six-flute design to reduce chatter and vibration, producing a smooth finish. Made from cobalt steel, it is suited for countersinking in metal and composite materials. Common applications include aerospace, automotive, and general manufacturing where a clean countersunk hole is required
KEO
This countersink features a 100° included angle and six-flute design to reduce chatter and vibration, producing a smooth finish. Made from cobalt steel, it is suited for countersinking in metal and composite materials. Common applications include aerospace, automotive, and general manufacturing where a clean countersunk hole is required

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This countersink is designed for creating smooth, burr-free 120° chamfers on drilled holes in metal. Its six-flute cobalt construction provides chatter-free operation and a fine finish. Suitable for use in drill presses, milling machines, or handheld drills for precision countersinking
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This 60° included-angle countersink features a six-flute design for smooth, burr-free chamfering in metal, plastic, and composite materials. The carbide construction with AlTiN coating provides heat and wear resistance for production machining, tool-and-die work, and other industrial applications
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This six-flute countersink is designed for creating smooth, chamfered recesses for flat-head screws. The six-flute configuration reduces chatter and produces a finer finish compared to standard three-flute tools. Suitable for deburring and precision assembly in metalworking and machining applications
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This six-flute countersink produces smooth, chatter-free 82° countersunk holes in metal, plastic, or wood. It is used for deburring and preparing fastener recesses in machining, fabrication, and assembly operations. The tool is made from high-speed steel and is compatible with drill presses or hand tools
This 100° countersink features a six-flute design that produces a smooth finish and reduces chatter. It is used for creating conical recesses for flat-head screws or rivets in metal, wood, or plastic. Suitable for precision deburring and countersinking in drill presses or handheld tools
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This 100° countersink features a six-flute design that produces a smooth finish and reduces chatter. It is used for creating conical recesses for flat-head screws or rivets in metal, wood, or plastic. Suitable for precision deburring and countersinking in drill presses or handheld tools
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Six-flute countersink designed for smooth-finish chamfering of holes to accommodate flat-head screws. The 82° included angle and cobalt steel construction suit machining of hard materials. Six-flute geometry reduces chatter and vibration for a finer surface finish
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