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KEO Countersink: 110°, 3 Flute, 1 1/4 in Body Dia - General Purpose Three-Flute Countersinks
KEOGeneral Purpose Three-Flute Countersinks

KEO Countersink: 110°, 3 Flute, 1 1/4 in Body Dia

SKU 3G-OTH-185104

Brand
KEO
Item
Countersink: 110°, 3 Flute, 1 1/4 in Body Dia
Category
General Purpose Three-Flute Countersinks
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Technical Specifications

KEO
Manufacturer Part Number
51251-TIN
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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is a KEO 110° countersink used for?

A KEO 110° countersink is used to create a conical recess for flat-head screws in metalworking and machining applications. The 3-flute design provides smooth cutting and reduced chatter, making it suitable for general-purpose deburring and countersinking in industrial settings.

What are the specifications of the KEO 51251-TIN countersink?

The KEO 51251-TIN is a 110° countersink with 3 flutes, a 1 1/4 in body diameter, and a TiN coated high speed steel construction. The TiN coating increases tool life and reduces friction. It is designed for general-purpose use in machining and fabrication.

Where to buy KEO countersinks worldwide?

3G Electric supplies KEO countersinks like the 51251-TIN to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other KEO tooling.

How to select the right KEO countersink for your application?

Select a KEO countersink based on the screw head angle (e.g., 110° for flat-head screws), body diameter matching the screw head size, and material compatibility. For harder materials, choose a TiN coated high speed steel option like the 51251-TIN to extend tool life and improve finish.

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 general purpose three-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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