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OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-214739

Brand
OSG
Item
Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute
Category
General Purpose Spiral-Point Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
2831801

Technical Documents

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

Product Description

OSG General Purpose Spiral-Point Taps.

Frequently Asked Questions

What is an OSG spiral point tap used for?

An OSG spiral point tap is used for through-hole threading in production machining. Its spiral-point design pushes chips forward, preventing chip clogging and enabling faster tapping cycles in materials like steel, aluminum, and cast iron across automotive, aerospace, and general manufacturing.

What are the specifications of the OSG 2831801 tap?

The OSG 2831801 is a 3/8"-24 UNF spiral point tap with a plug chamfer, 3 flutes, and an H3 / 2B-3B tolerance class. It is designed for general-purpose through-hole threading and is manufactured by OSG, a leading cutting tool brand.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 2831801 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG cutting tools.

How to select the correct tap for a UNF thread?

For UNF threads, match the tap size and pitch to the thread specification, such as 3/8"-24 UNF. Choose a spiral point tap for through holes or a spiral flute tap for blind holes. Verify the tolerance class (e.g., H3 / 2B-3B) aligns with your required fit.

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831800)
OSG
OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831800)
OSG Spiral Point Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831201)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831201)
OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830401)
OSG
OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830401)
OSG Spiral Point Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831601)
OSG
OSG Spiral Point Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831601)
OSG Spiral Point Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831600)
OSG
OSG Spiral Point Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2831600)
OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830800)
OSG
OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830800)

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