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OSG Spiral Flute Tap: M5x0.8 Metric, D4 / 4H-6H, 3 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: M5x0.8 Metric, D4 / 4H-6H, 3 Flute

The OSG Spiral Flute Tap is a general-purpose spiral-flute tap in M5x0.8 Metric size, featuring a D4 / 4H-6H tolerance class, 3 flutes, and a modified bottoming chamfer (MPN 2990808).

SKU 3G-OTH-230102

Brand
OSG
Item
Spiral Flute Tap: M5x0.8 Metric, D4 / 4H-6H, 3 Flute
Category
General Purpose Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2990808
Type
D4 / 4H-6H, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap is a general-purpose spiral-flute tap in M5x0.8 Metric size, featuring a D4 / 4H-6H tolerance class, 3 flutes, and a modified bottoming chamfer (MPN 2990808).

Frequently Asked Questions

What is the OSG spiral flute tap M5x0.8 used for?

The OSG spiral flute tap M5x0.8 is used for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design lifts chips upward, preventing clogging in deep or blind holes. It is ideal for general-purpose tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap M5x0.8?

The OSG spiral flute tap has a metric M5x0.8 thread, D4 / 4H-6H tolerance, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 2990808. It is designed for precise threading in blind holes with good chip evacuation.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute taps worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We supply genuine OSG cutting tools for industrial applications globally.

How to select the correct OSG spiral flute tap for blind holes?

Select an OSG spiral flute tap with a modified bottoming chamfer for blind holes. Ensure the thread size (e.g., M5x0.8) matches your application. The D4 / 4H-6H tolerance class provides a precise fit. Use a 3-flute design for balanced cutting and chip removal. Consult OSG's technical data for material-specific recommendations.

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 general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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