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OSG Countersink: 90°, 6 Flute, 1/4 in Body Dia - Smooth-Finish Six-Flute Countersinks
OSGSmooth-Finish Six-Flute Countersinks

OSG Countersink: 90°, 6 Flute, 1/4 in Body Dia

SKU 3G-OTH-188396

Brand
OSG
Item
Countersink: 90°, 6 Flute, 1/4 in Body Dia
Category
Smooth-Finish Six-Flute Countersinks
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Technical Specifications

OSG
Manufacturer Part Number
706-2500-090
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG 90° 6-flute countersink used for?

The OSG 90° 6-flute countersink is designed for creating smooth, burr-free 90° chamfers and countersinks in metal, plastic, and composite materials. Its six-flute design reduces vibration and chatter, making it ideal for precision deburring and countersinking in CNC and manual machining applications.

What are the specifications of the OSG 706-2500-090 countersink?

The OSG 706-2500-090 is a 90° countersink with six flutes, a 1/4 in body diameter, and a carbide construction. It is part of OSG's Smooth-Finish Six-Flute Countersinks line, designed for high-quality surface finishes. The manufacturer part number is 706-2500-090.

Where to buy the OSG 706-2500-090 countersink worldwide?

You can source the OSG 706-2500-090 countersink through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times on this OSG tool.

How to select the right OSG countersink for your application?

To select the right OSG countersink, match the angle (e.g., 90°) to your fastener head, choose the body diameter (e.g., 1/4 in) for your hole size, and consider flute count—six flutes provide smoother finishes. Carbide material suits harder workpieces. Always verify the manufacturer part number, such as 706-2500-090, for exact specs.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG 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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OSG Countersink: 60°, 6 Flute, 1/4 in Body Dia, Carbide (MPN 706-2500-060). Key specifications — attr1301035: OSG.
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