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KEO 110° Single-Flute Countersink, 3/8 in Body Dia, High-Speed Steel - Fast-Cutting Single-Flute Countersinks
KEOFast-Cutting Single-Flute Countersinks

KEO 110° Single-Flute Countersink, 3/8 in Body Dia, High-Speed Steel

KEO Fast-Cutting Single-Flute Countersinks.

SKU 3G-OTH-185541

Brand
KEO
Item
110° Single-Flute Countersink, 3/8 in Body Dia, High-Speed Steel
Category
Fast-Cutting Single-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
53381

Technical Documents

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

Product Description

KEO Fast-Cutting Single-Flute Countersinks.

Frequently Asked Questions

What is a KEO 110° countersink used for?

A KEO 110° countersink is used to create a conical recess in a workpiece, typically for flat-head screws or rivets. The 110° angle is common in aerospace and sheet-metal applications. This single-flute, high-speed steel design provides fast, chatter-free cutting in ferrous and non-ferrous materials.

What are the specifications of the KEO 53381 countersink?

The KEO 53381 is a 110° single-flute countersink with a 3/8 in body diameter, made from high-speed steel. It is designed for fast cutting and clean finishes. The 1-flute geometry reduces vibration and improves chip evacuation. This tool is suitable for general industrial deburring and countersinking tasks.

Where to buy KEO countersinks worldwide?

3G Electric supplies KEO countersinks like the 53381 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial sourcing partner, we provide genuine KEO tooling and can quote for bulk or single-piece orders. Contact us for pricing and lead time.

How to select the correct countersink angle for a job?

Select the countersink angle that matches your fastener head angle — 82° for standard flat-head screws, 90° for metric, and 110° for aerospace or sheet-metal screws. The KEO 110° single-flute countersink is ideal for thin materials where a shallow, wide recess is needed. Always match tool material to workpiece hardness.

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 fast-cutting single-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 110° included angle and a single flute for fast cutting. With a 1-inch body diameter and high-speed steel construction, it is used for deburring and chamfering holes in metal workpieces
KEO
This KEO countersink features a 110° included angle and a single flute for fast cutting. With a 1-inch body diameter and high-speed steel construction, it is used for deburring and chamfering holes in metal workpieces
This single-flute countersink features an 82° included angle and a 3/4 in body diameter. Constructed from TiN-coated high-speed steel, it is designed for fast, chatter-free cutting. Suitable for deburring and countersinking holes in metal, plastic, and wood to accommodate standard flat-head screws
KEO
This single-flute countersink features an 82° included angle and a 3/4 in body diameter. Constructed from TiN-coated high-speed steel, it is designed for fast, chatter-free cutting. Suitable for deburring and countersinking holes in metal, plastic, and wood to accommodate standard flat-head screws
This fast-cutting single-flute countersink is made from TiN coated high speed steel for wear resistance. It has a 1-3/4 in body diameter and 3/4 in shank, with an 82° included angle for deburring and countersinking holes in metal, plastic, and wood to accept standard flat-head screws
KEO
This fast-cutting single-flute countersink is made from TiN coated high speed steel for wear resistance. It has a 1-3/4 in body diameter and 3/4 in shank, with an 82° included angle for deburring and countersinking holes in metal, plastic, and wood to accept standard flat-head screws
This single-flute countersink has a 90° included angle and a 3/8 in body diameter. It is made from TiN-coated high-speed steel for wear resistance. Used for deburring and countersinking holes in metal, plastic, and wood
KEO
This single-flute countersink has a 90° included angle and a 3/8 in body diameter. It is made from TiN-coated high-speed steel for wear resistance. Used for deburring and countersinking holes in metal, plastic, and wood
This KEO countersink features a 110° angle and single-flute design for efficient deburring and countersinking. Made from high-speed steel with a 1/4 in body diameter, it is suited for use on metal, plastic, and wood in general machining applications
KEO
This KEO countersink features a 110° angle and single-flute design for efficient deburring and countersinking. Made from high-speed steel with a 1/4 in body diameter, it is suited for use on metal, plastic, and wood in general machining applications
This KEO countersink features a 60° included angle and a single flute design for fast cutting. It has a 3/8 in body diameter and is made from TiN-coated high-speed steel. Used for creating conical recesses for flathead screws or deburring holes in metalworking applications
KEO
This KEO countersink features a 60° included angle and a single flute design for fast cutting. It has a 3/8 in body diameter and is made from TiN-coated high-speed steel. Used for creating conical recesses for flathead screws or deburring holes in metalworking applications

More from KEO

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This fast-cutting single-flute countersink features a 120° included angle and a 5/8 in body diameter, constructed from cobalt. It is used to create conical recesses for flat-head screws or to deburr holes in metal. Suitable for use in drill presses or handheld tools for precise chamfering and deburring in machining and fabrication applications
KEO
This fast-cutting single-flute countersink features a 120° included angle and a 5/8 in body diameter, constructed from cobalt. It is used to create conical recesses for flat-head screws or to deburr holes in metal. Suitable for use in drill presses or handheld tools for precise chamfering and deburring in machining and fabrication applications
This KEO countersink features a 100° included angle and a single-flute design for fast cutting. The body and shank diameters are both 3/16 in. Made from cobalt steel, it is suited for creating conical recesses for flat-head screws in metalworking applications
KEO
This KEO countersink features a 100° included angle and a single-flute design for fast cutting. The body and shank diameters are both 3/16 in. Made from cobalt steel, it is suited for creating conical recesses for flat-head screws in metalworking applications
This fast-cutting single-flute countersink is made of TiN coated carbide for extended tool life. With an 82° included angle, it is used for deburring and countersinking holes in metal, plastic, or composite materials. The single-flute design minimizes chatter and provides a clean chamfer for screw holes in machining and fabrication applications
KEO
This fast-cutting single-flute countersink is made of TiN coated carbide for extended tool life. With an 82° included angle, it is used for deburring and countersinking holes in metal, plastic, or composite materials. The single-flute design minimizes chatter and provides a clean chamfer for screw holes in machining and fabrication applications
This fast-cutting single-flute countersink creates a 90° conical recess for flat-head screws. Made from AlTiN coated high-speed steel, it is suitable for deburring and countersinking in ferrous and non-ferrous materials. Body diameter is 1-1/2 in with a 3/4 in shank
KEO
This fast-cutting single-flute countersink creates a 90° conical recess for flat-head screws. Made from AlTiN coated high-speed steel, it is suitable for deburring and countersinking in ferrous and non-ferrous materials. Body diameter is 1-1/2 in with a 3/4 in shank
This 82° countersink features a single-flute design for fast, clean cutting. Made from AlTiN-coated high-speed steel with a 1/2 in body diameter. Suitable for creating conical recesses for flat-head screws in metal, wood, or plastic, and can be used in drill presses or handheld tools
KEO
This 82° countersink features a single-flute design for fast, clean cutting. Made from AlTiN-coated high-speed steel with a 1/2 in body diameter. Suitable for creating conical recesses for flat-head screws in metal, wood, or plastic, and can be used in drill presses or handheld tools
High-speed steel single-flute countersink with 110° included angle, 1-3/4 in body diameter, and 3/4 in shank. Designed for deburring and chamfering drilled holes in metalworking applications, creating conical recesses for flat-head screws
KEO
High-speed steel single-flute countersink with 110° included angle, 1-3/4 in body diameter, and 3/4 in shank. Designed for deburring and chamfering drilled holes in metalworking applications, creating conical recesses for flat-head screws
This single-flute countersink creates 82° chamfered holes in metal, plastic, or wood. Commonly used in machining and fabrication to deburr drilled holes or prepare countersunk screw seats. The AlTiN coating reduces friction and heat buildup for extended tool life on abrasive materials
KEO
This single-flute countersink creates 82° chamfered holes in metal, plastic, or wood. Commonly used in machining and fabrication to deburr drilled holes or prepare countersunk screw seats. The AlTiN coating reduces friction and heat buildup for extended tool life on abrasive materials
This KEO countersink features a single-flute design for fast cutting in metal, plastic, or wood. With an 82° included angle and 5/8 in body diameter, it is used for deburring and chamfering holes in machining and fabrication applications. The AlTiN-coated carbide construction provides wear resistance in high-speed production environments
KEO
This KEO countersink features a single-flute design for fast cutting in metal, plastic, or wood. With an 82° included angle and 5/8 in body diameter, it is used for deburring and chamfering holes in machining and fabrication applications. The AlTiN-coated carbide construction provides wear resistance in high-speed production environments