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OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-215919

Brand
OSG
Item
Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute
Category
General Purpose Spiral-Point Taps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
2816500

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 #4-48 UNF used for?

The OSG Spiral Point Tap #4-48 UNF is used for threading holes in production machining, particularly for through-hole applications. Its spiral-point design pushes chips ahead, reducing chip clogging. It is suitable for general-purpose threading in materials like steel, aluminum, and cast iron, commonly used in automotive, aerospace, and general manufacturing.

What are the specifications of the OSG Spiral Point Tap #4-48 UNF?

The OSG Spiral Point Tap has a #4-48 UNF thread size, H2 / 2B-3B tolerance class, 2 flutes, and a plug chamfer. The manufacturer part number is 2816500. It is designed for general-purpose threading and is made by OSG, a leading cutting tool brand. 3G Electric supplies this tap globally.

Where to buy the OSG Spiral Point Tap #4-48 UNF worldwide?

You can source the OSG Spiral Point Tap #4-48 UNF worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we provide reliable sourcing for this OSG tap.

How to select the correct OSG Spiral Point Tap for my application?

To select the correct OSG Spiral Point Tap, match the thread size (e.g., #4-48 UNF) and tolerance class (H2 / 2B-3B) to your hole requirements. Use spiral-point taps for through-holes; they push chips forward. Consider material hardness and tap coating. For best results, consult OSG's technical data or contact 3G Electric for guidance on your specific application.

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: #4-48 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816508)
OSG
OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816508)
OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816501)
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OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816501)
OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816300)
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OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816300)
OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1206600)
OSG
OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1206600)
OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816308)
OSG
OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816308)
OSG spiral-point tap for through-hole threading, #4-40 UNC thread size, H4 / 2B-3B tolerance class, 2-flute design with plug chamfer. The spiral-point geometry pushes chips ahead to reduce clogging and enable faster production. Suitable for general-purpose tapping in ferrous and non-ferrous materials
OSG
OSG spiral-point tap for through-hole threading, #4-40 UNC thread size, H4 / 2B-3B tolerance class, 2-flute design with plug chamfer. The spiral-point geometry pushes chips ahead to reduce clogging and enable faster production. Suitable for general-purpose tapping in ferrous and non-ferrous materials

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General purpose spiral-point tap designed for through-hole threading in metals such as steel, stainless steel, and aluminum. Features a spiral point geometry that pushes chips forward, reducing chip congestion. Thread size 3/8"-24 UNF with H5 tolerance for 2B/3B class fit, 3 flutes, and plug chamfer. Suitable for production environments in automotive, aerospace, and general manufacturing
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