KEO Countersink: 90°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank
SKU 3G-OTH-187902
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Frequently Asked Questions
What is a KEO 6-flute countersink used for?
A KEO 6-flute countersink creates smooth, chatter-free 90° chamfers on drilled holes for flush screw or bolt seating. It is commonly used in metalworking, machining, and fabrication across industries such as automotive, aerospace, and general manufacturing.
What are the specifications of the KEO 919-000-399 countersink?
The KEO 919-000-399 is a 90°, 6-flute countersink with a 1 3/4 in body diameter and a 3/4 in shank, made from high-speed steel. It is designed for smooth-finish applications and is part of KEO's six-flute countersink line.
Where to buy KEO countersinks worldwide?
3G Electric supplies KEO countersinks like the 919-000-399 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this high-speed steel, 6-flute countersink.
How to select the right KEO countersink for your application?
Select a KEO countersink based on hole size, material, and desired finish. For steel or hard alloys, use high-speed steel fluted designs like the 919-000-399. Match body diameter to your chamfer depth and shank size to your tool holder. Consult a technical specialist for guidance.
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Common applications for KEOKEO 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.















