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KEO Countersink: 90°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank - Smooth-Finish Six-Flute Countersinks
KEOSmooth-Finish Six-Flute Countersinks

KEO Countersink: 90°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank

The KEO Countersink: 90° is a Smooth-Finish Six-Flute Countersink (SKU 3G-OTH-188061) made from TiN Coated High Speed Steel, with a 1 1/2 in body diameter and a 3/4 in shank (MPN 919-000-398).

SKU 3G-OTH-188061

Also listed as: 919000398 · 919 000 398

Brand
KEO
Item
Countersink: 90°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank
Category
Smooth-Finish Six-Flute Countersinks
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

KEO
Manufacturer Part Number
919-000-398
Type
TiN Coated High Speed Steel
Flute
6
Shank
3/4 in
Body Dia
1 1/2 in

Technical Documents

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

Product Description

The KEO Countersink: 90° is a Smooth-Finish Six-Flute Countersink (SKU 3G-OTH-188061) made from TiN Coated High Speed Steel, with a 1 1/2 in body diameter and a 3/4 in shank (MPN 919-000-398).

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 used in metalworking, machining, and fabrication across industries such as automotive, aerospace, and general manufacturing.

What are the specifications of the KEO 919-000-398 countersink?

The KEO 919-000-398 is a 90° countersink with 6 flutes, a 1 1/2 in body diameter, and a 3/4 in shank. It is made of TiN coated high speed steel for extended tool life and reduced friction. This smooth-finish design minimizes vibration during operation.

Where to buy KEO countersinks worldwide?

3G Electric supplies KEO countersinks like the 919-000-398 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this TiN coated high speed steel tool.

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, choose TiN coated high speed steel like the 919-000-398. Match the body diameter to your chamfer size and ensure the shank fits your tool holder. Six-flute designs reduce chatter on CNC or manual machines.

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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