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OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (1/2"-13 UNC, MPN 1650503308) is a 3-flute, modified-bottoming-chamfer tap with H3 / 2B-3B tolerance, designed for threading steel and stainless steel. 3G Electric interprets your demand for…

SKU 3G-OTH-217863

Brand
OSG
Item
Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650503308
Type
H3 / 2B-3B, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1/2"-13 UNC, MPN 1650503308) is a 3-flute, modified-bottoming-chamfer tap with H3 / 2B-3B tolerance, designed for threading steel and stainless steel. 3G Electric interprets your demand for this OEM-specified tool, sourcing it across 14 industrial departments — with specialist depth in combustion, pumps, and controls as a trust anchor — to deliver the right solution, not just a catalog.

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 1/2"-13 UNC used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging in deep holes. It is commonly used in automotive, aerospace, and general manufacturing applications requiring precise UNC threads.

What are the specifications of the OSG spiral flute tap 1/2"-13 UNC?

This OSG tap has a 1/2"-13 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 1650503308. It is designed for threading blind holes in steel and stainless steel, providing accurate thread depth control.

Where to buy OSG spiral flute taps worldwide?

3G Electric supplies OSG spiral flute taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine OSG tooling to support your manufacturing operations.

How to select the correct OSG tap for steel threading?

For steel threading, choose a spiral flute tap like this OSG 1/2"-13 UNC model for blind holes. Ensure the tap tolerance (H3 / 2B-3B) matches your thread class requirement. Use appropriate cutting fluid and machine speed per OSG recommendations. For through holes, consider a spiral point tap instead.

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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