KEO Countersink: 100°, 1 Flute, 1 1/4 in Body Dia
SKU 3G-OTH-185797
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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 single-flute design provides fast, chatter-free cutting in steel, stainless steel, and non-ferrous materials, making it ideal for deburring and countersinking holes in industrial manufacturing.
What are the specifications of the KEO 100° countersink?
The KEO countersink has a 100° included angle, 1 flute, and a 1 1/4 in body diameter. It is made from cobalt steel (MPN 919-000-637) for heat resistance and durability. This fast-cutting single-flute design is engineered for precision countersinking in hard metals, with a 1/4 in shank for standard toolholders.
Where to buy the KEO 100° countersink worldwide?
3G Electric supplies the KEO 100° countersink worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time; we source and deliver this KEO cobalt countersink to any international destination.
How to select the right KEO countersink for your application?
Select the KEO countersink based on screw head angle (100° for flat-head screws), material hardness (cobalt for tough alloys), and hole size (body diameter 1 1/4 in). For deep holes, use a single-flute design to reduce vibration. Always match shank diameter to your drill chuck or collet for stable operation.
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Common applications for KEOKEO 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.















