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OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer

The OSG Spiral Flute Tap (5/16"-24 UNF) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, with an H3 / 2B-3B tolerance class (MPN 1650511308). Designed for threading steel and stainless steel, it…

SKU 3G-OTH-218944

Brand
OSG
Item
Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer
Category
Spiral-Flute Taps for Steel & Stainless Steel
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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
1650511308
Type
H3 / 2B-3B, Bottoming Chamfer, V Coated Powdered Metal
Flute
3

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

Product Description

The OSG Spiral Flute Tap (5/16"-24 UNF) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, with an H3 / 2B-3B tolerance class (MPN 1650511308). Designed for threading steel and stainless steel, it is supplied by 3G Electric, a global industrial solutions provider that interprets customer demand and delivers genuine equipment across 14 departments, with specialist depth in combustion, pumps and controls.

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 an OSG spiral flute tap used for?

An OSG spiral flute tap is used for threading blind holes in steel and stainless steel. Its spiral design pushes chips upward and out of the hole, preventing chip clogging and ensuring clean threads. This makes it ideal for production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 5/16-24 UNF spiral flute tap?

This OSG tap is 5/16-24 UNF with a H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It features a V coating on powdered metal for extended tool life. The manufacturer part number is 1650511308. These specs ensure precise thread fit in steel and stainless steel blind holes.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the 5/16-24 UNF spiral flute tap and deliver them to your facility. Contact us for a quote and delivery to your location.

How to select the right OSG tap for steel?

For steel, choose a spiral flute tap like this OSG 5/16-24 UNF model when tapping blind holes. The V coating and powdered metal construction resist wear. Ensure the tap's thread class (H3 / 2B-3B) matches your required fit. Use proper cutting fluid and speed per OSG recommendations for best results.

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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Cross-referenced by specification & description
OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650511108)
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a bottoming chamfer for threading close to the hole bottom, 3 flutes, and V-coated powdered metal construction. Tolerance class H4 / 2B-3B ensures precise thread fit. Thread size 5/16-24 UNF
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a bottoming chamfer for threading close to the hole bottom, 3 flutes, and V-coated powdered metal construction. Tolerance class H4 / 2B-3B ensures precise thread fit. Thread size 5/16-24 UNF
Bottoming-chamfer spiral-flute tap with 3 flutes, made of V-coated powdered metal. Tolerance class H3 / 2B-3B. Designed for threading blind holes in steel and stainless steel
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Bottoming-chamfer spiral-flute tap with 3 flutes, made of V-coated powdered metal. Tolerance class H3 / 2B-3B. Designed for threading blind holes in steel and stainless steel
Spiral-flute tap for threading blind holes in steel and stainless steel. 3/8"-24 UNF thread, H4 / 2B-3B tolerance, bottoming chamfer, 3 flutes. V coated powdered metal construction. Chips evacuate upward, preventing clogging in blind-hole applications
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Spiral-flute tap for threading blind holes in steel and stainless steel. 3/8"-24 UNF thread, H4 / 2B-3B tolerance, bottoming chamfer, 3 flutes. V coated powdered metal construction. Chips evacuate upward, preventing clogging in blind-hole applications
OSG Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650510908)
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OSG Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650510908)
OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650511608)
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OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650511608)

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