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OSG 1/4"-28 UNF General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG 1/4"-28 UNF General Purpose Spiral-Point Tap

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-215889

Brand
OSG
Item
1/4"-28 UNF General Purpose Spiral-Point Tap
Category
General Purpose Spiral-Point Taps
Available to Order
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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
2840501

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 designed for through-hole threading in metalworking. Its spiral point pushes chips ahead, preventing clogging and ensuring clean threads in materials like steel and aluminum. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 2840501 tap?

The OSG 2840501 is a 1/4"-28 UNF spiral point tap with a H6 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for general purpose threading in through holes, providing precise thread fit and chip evacuation.

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 and deliver genuine OSG cutting tools to your facility, ensuring compliance with international shipping requirements.

How to select the correct OSG tap for a job?

Select an OSG tap based on thread size, pitch, material, and hole type. For through holes, a spiral point tap like the 2840501 is ideal. Match the tap tolerance (e.g., H6) to the required thread class (2B-3B). 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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Cross-referenced by specification & description
General purpose spiral-point tap for through-hole threading. Features a 1/4-28 UNF thread size, H4 / 2B-3B tolerance, 3 flutes, and plug chamfer. Designed to push chips ahead, reducing clogging in applications such as automotive, aerospace, and general manufacturing
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General purpose spiral-point tap for through-hole threading. Features a 1/4-28 UNF thread size, H4 / 2B-3B tolerance, 3 flutes, and plug chamfer. Designed to push chips ahead, reducing clogging in applications such as automotive, aerospace, and general manufacturing
This OSG spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral point pushes chips ahead, reducing chip clogging. Common applications include automotive, aerospace, and general manufacturing where precise UNF threads are required
OSG
This OSG spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral point pushes chips ahead, reducing chip clogging. Common applications include automotive, aerospace, and general manufacturing where precise UNF threads are required
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a 7/16"-20 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and plug chamfer. The spiral-point geometry pushes chips forward, reducing clogging and enabling faster tapping cycles
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General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a 7/16"-20 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and plug chamfer. The spiral-point geometry pushes chips forward, reducing clogging and enabling faster tapping cycles
This OSG spiral-point tap is designed for through-hole threading in production environments. The spiral-point geometry pushes chips forward, reducing clogging and enabling faster tapping cycles in ferrous and non-ferrous materials. It features a 5/8"-18 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer
OSG
This OSG spiral-point tap is designed for through-hole threading in production environments. The spiral-point geometry pushes chips forward, reducing clogging and enabling faster tapping cycles in ferrous and non-ferrous materials. It features a 5/8"-18 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer
Spiral-point tap for through-hole threading in ferrous and non-ferrous materials. The spiral point design pushes chips forward, reducing clogging. Features 1/4"-28 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and plug chamfer. Suitable for general manufacturing applications
OSG
Spiral-point tap for through-hole threading in ferrous and non-ferrous materials. The spiral point design pushes chips forward, reducing clogging. Features 1/4"-28 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and plug chamfer. Suitable for general manufacturing applications
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its 3-flute, plug chamfer design pushes chips forward, making it suitable for high-production tapping applications. The H3 / 2B-3B tolerance ensures precise thread fit for UNF fasteners
OSG
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its 3-flute, plug chamfer design pushes chips forward, making it suitable for high-production tapping applications. The H3 / 2B-3B tolerance ensures precise thread fit for UNF fasteners

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General purpose spiral-point tap for through-hole threading. Features a spiral point design that pushes chips forward to prevent clogging. Constructed from black oxide high-speed steel with a plug chamfer and 3 flutes. Thread size M10x1 with D5 / 4H-6H tolerance
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General purpose spiral-point tap for through-hole threading. Features a spiral point design that pushes chips forward to prevent clogging. Constructed from black oxide high-speed steel with a plug chamfer and 3 flutes. Thread size M10x1 with D5 / 4H-6H tolerance
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