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OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Modified Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Modified Bottoming Chamfer

OSG Spiral-Flute Taps for Steel & Stainless Steel.

SKU 3G-OTH-218717

Brand
OSG
Item
Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Modified Bottoming Chamfer
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
1645004402

Technical Documents

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

Product Description

OSG Spiral-Flute Taps for Steel & Stainless Steel.

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 the OSG spiral flute tap #4-40 UNC used for?

The OSG spiral flute tap #4-40 UNC is designed for threading blind holes in steel and stainless steel. Its spiral flute design lifts chips upward, preventing clogging in deep or blind holes. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threads are required.

What are the specifications of the OSG spiral flute tap #4-40 UNC?

The OSG spiral flute tap has a #4-40 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, and a modified bottoming chamfer. The manufacturer part number is 1645004402. It is designed for threading steel and stainless steel, with a spiral flute geometry that efficiently evacuates chips from blind holes.

Where to buy OSG spiral flute taps in worldwide?

You can source OSG spiral flute taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG #4-40 UNC tap (MPN 1645004402) and other OSG tooling.

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

Select an OSG spiral flute tap based on thread size, tolerance class, and material. For steel and stainless steel, use taps with H2 / 2B-3B tolerance and a modified bottoming chamfer for blind holes. Ensure the tap matches the required UNC thread standard. OSG taps are engineered for consistent performance in production threading.

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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