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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-215957

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
2816501

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 OSG spiral point tap #4-48 UNF used for?

This OSG spiral point tap is designed for through-hole threading in metalworking. Its spiral point pushes chips ahead, reducing clogging in production environments. It suits automotive, aerospace, and general machining applications requiring precise #4-48 UNF threads.

What are the specifications of OSG spiral point tap 2816501?

The OSG 2816501 is a #4-48 UNF spiral point tap with H2 / 2B-3B thread class, 2 flutes, and a plug chamfer. It is a general-purpose tap for through-hole threading in ferrous and non-ferrous materials. 3G Electric supplies this OSG tap globally.

Where to buy OSG spiral point tap 2816501 worldwide?

3G Electric sources and delivers the OSG spiral point tap 2816501 to worldwide locations. We handle full logistics and customs clearance, ensuring you receive the correct tap for your threading application. Contact us for availability and lead time.

How to select the right spiral point tap for #4-48 UNF threads?

For #4-48 UNF threads, choose a spiral point tap like OSG 2816501 for through holes. Verify the thread class (H2 / 2B-3B) matches your tolerance needs. Use proper cutting fluid and speed per material. 3G Electric can help you confirm the correct tap for your job.

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 2816500)
OSG
OSG Spiral Point Tap: #4-48 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816500)
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: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816300)
OSG
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 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
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)

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