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OSG Smooth-Finish Six-Flute Countersink - Smooth-Finish Six-Flute Countersinks
OSGSmooth-Finish Six-Flute Countersinks

OSG Smooth-Finish Six-Flute Countersink

OSG Smooth-Finish Six-Flute Countersinks.

SKU 3G-OTH-188396

Also listed as: 7062500090 · 706 2500 090

Brand
OSG
Item
Smooth-Finish Six-Flute Countersink
Category
Smooth-Finish Six-Flute Countersinks
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
706-2500-090

Technical Documents

No technical documents available for this product.
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG Smooth-Finish Six-Flute Countersinks.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: #6-32 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2003905)
OSG
OSG Spiral Point Tap: #6-32 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2003905)
OSG Spiral Flute Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1412401)
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OSG Spiral Flute Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1412401)
General purpose spiral-flute tap for threading blind holes. Features a #6-32 UNC thread size, H3 / 2B-3B tolerance, 2 flutes, and bottoming chamfer. The spiral flute design evacuates chips upward, preventing clogging. Suitable for tapping in steel, stainless steel, and aluminum
OSG
General purpose spiral-flute tap for threading blind holes. Features a #6-32 UNC thread size, H3 / 2B-3B tolerance, 2 flutes, and bottoming chamfer. The spiral flute design evacuates chips upward, preventing clogging. Suitable for tapping in steel, stainless steel, and aluminum
High-speed steel spiral-flute tap for #6-40 UNF threads. Features a 2B thread class, bottoming chamfer, and 2-flute design. Spiral flutes evacuate chips upward, making it suitable for threading blind holes in materials such as steel and aluminum
OSG
High-speed steel spiral-flute tap for #6-40 UNF threads. Features a 2B thread class, bottoming chamfer, and 2-flute design. Spiral flutes evacuate chips upward, making it suitable for threading blind holes in materials such as steel and aluminum
General purpose spiral-point tap for through-hole threading. Made of TiCN coated high speed steel with H4 / 2B-3B tolerance, plug chamfer, and 2 flutes. Suitable for threading ferrous and non-ferrous materials in production environments
OSG
General purpose spiral-point tap for through-hole threading. Made of TiCN coated high speed steel with H4 / 2B-3B tolerance, plug chamfer, and 2 flutes. Suitable for threading ferrous and non-ferrous materials in production environments
General purpose spiral-flute tap for threading blind holes. The spiral flute design lifts chips upward, preventing clogging. Bottoming chamfer allows threading close to the hole bottom. TiN coating reduces friction and extends tool life. Suitable for steel and aluminum
OSG
General purpose spiral-flute tap for threading blind holes. The spiral flute design lifts chips upward, preventing clogging. Bottoming chamfer allows threading close to the hole bottom. TiN coating reduces friction and extends tool life. Suitable for steel and aluminum

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This OSG countersink features an 82° included angle and six flutes for smooth, chatter-free chamfering. The carbide construction provides wear resistance for consistent performance in metal and composite materials. Suitable for precision countersinking in general machining applications
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This OSG countersink features a 60° included angle and six flutes for smooth, chatter-free deburring and chamfering of holes in metal. The carbide construction provides wear resistance for extended tool life. Commonly used in machining and fabrication operations where a fine surface finish on the chamfer is required
This OSG countersink features a 90° included angle and six flutes for smooth, chatter-free finishing. The carbide construction provides wear resistance for use in metal and composite materials. It is suited for deburring and creating chamfered holes for screw heads in precision machining applications
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This OSG countersink features a 90° included angle and six flutes for smooth, chatter-free finishing. The carbide construction provides wear resistance for use in metal and composite materials. It is suited for deburring and creating chamfered holes for screw heads in precision machining applications
This 60° countersink features six flutes for smooth cutting and reduced chatter. With a 1/4 in body diameter and carbide construction, it is suited for deburring and countersinking holes in metal, plastic, and composite materials in general machining operations
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This 60° countersink features six flutes for smooth cutting and reduced chatter. With a 1/4 in body diameter and carbide construction, it is suited for deburring and countersinking holes in metal, plastic, and composite materials in general machining operations
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This OSG countersink features an 82° included angle and six flutes for smooth, chatter-free operation. It is made from carbide for extended tool life. Typical applications include creating conical recesses for flat-head screws in metalworking and machining
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