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OSG Spiral Point Tap: #8-32 UNC, H4 / 2B-3B, 3 Flute - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: #8-32 UNC, H4 / 2B-3B, 3 Flute

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-215088

Brand
OSG
Item
Spiral Point Tap: #8-32 UNC, H4 / 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.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
2812901

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 the OSG spiral point tap #8-32 UNC used for?

The OSG spiral point tap #8-32 UNC is used for threading blind or through holes in ferrous and non-ferrous materials. Its spiral point design pushes chips ahead, reducing chip clogging. Common applications include automotive, aerospace, and general manufacturing where precise internal threads are required.

What are the specifications of the OSG spiral point tap #8-32 UNC?

The OSG spiral point tap has a #8-32 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. The manufacturer part number is 2812901. It is designed for general-purpose threading in materials up to 850 °C hardness. The H4 tolerance ensures fit for 2B or 3B class threads.

Where to buy OSG spiral point taps worldwide?

You can source OSG spiral point 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 #8-32 UNC tap (MPN 2812901).

How to select the correct OSG spiral point tap for my application?

Select the OSG spiral point tap based on thread size, tolerance class, and material hardness. For #8-32 UNC threads, the H4 / 2B-3B tap suits general-purpose threading in steel, aluminum, and cast iron. Ensure the tap chamfer (plug) matches hole type. Consult OSG's technical data for material-specific speeds and feeds.

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: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812801)
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OSG Spiral Point Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812801)
OSG Spiral Point Tap: #6-32 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2812501)
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OSG Spiral Point Tap: #6-32 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2812501)
OSG Spiral Point Tap: #8-32 UNC, H5 / 2B, 3 Flute, Plug Chamfer (MPN 2817801)
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OSG Spiral Point Tap: #8-32 UNC, H5 / 2B, 3 Flute, Plug Chamfer (MPN 2817801)
OSG Spiral Point Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812800)
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OSG Spiral Point Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812800)
OSG Spiral Point Tap: #8-32 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2807801)
OSG
OSG Spiral Point Tap: #8-32 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2807801)
OSG Spiral Point Tap: #10-32 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2813901)
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OSG Spiral Point Tap: #10-32 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2813901)

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