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OSG Spiral Flute Tap: M2.5x0.45 Metric, D3 / 4H-6H, 2 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: M2.5x0.45 Metric, D3 / 4H-6H, 2 Flute

The OSG Spiral Flute Tap is a metric M2.5x0.45 spiral-flute tap for steel and stainless steel, featuring a D3 / 4H-6H tolerance class, 2-flute design, and modified bottoming chamfer (MPN 1650003908).

SKU 3G-OTH-219138

Brand
OSG
Item
Spiral Flute Tap: M2.5x0.45 Metric, D3 / 4H-6H, 2 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
1650003908
Type
D3 / 4H-6H, Modified Bottoming Chamfer
Flute
2

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

Product Description

The OSG Spiral Flute Tap is a metric M2.5x0.45 spiral-flute tap for steel and stainless steel, featuring a D3 / 4H-6H tolerance class, 2-flute design, and modified bottoming chamfer (MPN 1650003908).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is OSG spiral flute tap M2.5x0.45 used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its 2-flute design and modified bottoming chamfer efficiently evacuate chips upward, making it ideal for automotive, aerospace, and general manufacturing applications where clean threads close to the hole bottom are required.

What are the specifications of OSG spiral flute tap M2.5x0.45?

This OSG tap has a metric thread size of M2.5x0.45, a D3 / 4H-6H tolerance class, 2 flutes, and a modified bottoming chamfer. The manufacturer part number is 1650003908. It is designed for threading blind holes in steel and stainless steel materials.

Where to buy OSG spiral flute tap M2.5x0.45 worldwide?

3G Electric supplies and delivers this OSG spiral flute tap worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility, whether you are in North America, Europe, Asia, or the Middle East.

How to select the correct OSG spiral flute tap for steel?

Select an OSG spiral flute tap based on thread size, pitch, and hole type. For blind holes in steel, choose a modified bottoming chamfer to thread close to the hole bottom. Ensure the tap tolerance class (e.g., D3 / 4H-6H) matches your required thread fit. Always use appropriate cutting fluid for steel.

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

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