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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-215166

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
2840500

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 metals. Its spiral point pushes chips ahead, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general machining applications where efficient chip evacuation is critical.

What are the specifications of the OSG 1/4"-28 UNF spiral point tap?

This OSG tap has a 1/4"-28 UNF thread size, H6 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a general-purpose spiral-point tap for through-hole threading. The manufacturer part number is 2840500.

Where to buy OSG taps in worldwide?

3G Electric supplies and delivers OSG taps worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility. Contact us for availability and lead time on this OSG spiral point tap.

How to select the correct OSG tap for a threading application?

Select an OSG tap based on thread size (e.g., 1/4"-28 UNF), tolerance class (H6 for precision), material type, and hole configuration (through or blind). For through holes, a spiral point tap like this one is ideal. Always match the tap to your workpiece hardness and machine setup.

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: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830400)
OSG
OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2830400)
Spiral-point tap designed for through-hole threading in metals and alloys. Features a 1/4"-28 UNF thread size, H4 tolerance for 2B-3B class threads, 3 flutes, and a plug chamfer. The spiral point design pushes chips forward to prevent clogging and ensure clean threads
OSG
Spiral-point tap designed for through-hole threading in metals and alloys. Features a 1/4"-28 UNF thread size, H4 tolerance for 2B-3B class threads, 3 flutes, and a plug chamfer. The spiral point design pushes chips forward to prevent clogging and ensure clean threads
Spiral-point tap designed for through-hole threading. Pushes chips forward to reduce congestion and breakage. Suitable for ferrous and non-ferrous materials in general manufacturing applications
OSG
Spiral-point tap designed for through-hole threading. Pushes chips forward to reduce congestion and breakage. Suitable for ferrous and non-ferrous materials in general manufacturing applications
Spiral-point tap for through-hole threading in ferrous and non-ferrous metals. Features 1/4"-28 UNF thread, H5 tolerance, 3 flutes, and plug chamfer. Designed for 2B-3B class fit, the spiral point pushes chips ahead to prevent clogging, enabling efficient chip evacuation and consistent thread quality in production and maintenance applications
OSG
Spiral-point tap for through-hole threading in ferrous and non-ferrous metals. Features 1/4"-28 UNF thread, H5 tolerance, 3 flutes, and plug chamfer. Designed for 2B-3B class fit, the spiral point pushes chips ahead to prevent clogging, enabling efficient chip evacuation and consistent thread quality in production and maintenance applications
This spiral-point tap is designed for through-hole threading in general-purpose industrial applications. Its geometry pushes chips forward to reduce clogging and enable faster cycles in materials such as steel, aluminum, and cast iron. Thread size: 7/8"-14 UNF, tolerance class H4 / 2B-3B, 3 flutes, plug chamfer
OSG
This spiral-point tap is designed for through-hole threading in general-purpose industrial applications. Its geometry pushes chips forward to reduce clogging and enable faster cycles in materials such as steel, aluminum, and cast iron. Thread size: 7/8"-14 UNF, tolerance class H4 / 2B-3B, 3 flutes, plug chamfer
General purpose spiral-point tap with 7/16"-14 UNC thread size, H3 / 2B-3B tolerance class, 3 flutes, and plug chamfer. Designed for threading blind or through holes in ferrous and non-ferrous materials. The spiral-point design pushes chips forward to reduce clogging and improve thread quality in production environments
OSG
General purpose spiral-point tap with 7/16"-14 UNC thread size, H3 / 2B-3B tolerance class, 3 flutes, and plug chamfer. Designed for threading blind or through holes in ferrous and non-ferrous materials. The spiral-point design pushes chips forward to reduce clogging and improve thread quality in production environments

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General purpose spiral-point tap for through-hole threading. #10-32 UNF thread, 3B class fit, plug chamfer, 2-flute design pushes chips forward. Black oxide high-speed steel construction for use in ferrous materials
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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
General purpose spiral-point tap for through-hole threading. Made of TiCN coated high speed steel with plug chamfer and 2 flutes. Thread class H1 / 2B-3B. Suitable for production tapping in steel, stainless steel, and aluminum
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General purpose spiral-point tap for through-hole threading in metalworking. Pushes chips ahead to reduce clogging. #2-56 UNC size, H5/2B tolerance, 2-flute design, plug chamfer, high-speed steel construction
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General purpose spiral-point tap for through-hole threading in metalworking. Pushes chips ahead to reduce clogging. #2-56 UNC size, H5/2B tolerance, 2-flute design, plug chamfer, high-speed steel construction
General purpose spiral-point tap for through-hole threading. Made of TiN coated high speed steel with H2 / 2B-3B tolerance, plug chamfer, and 2-flute design. Suitable for threading #2-56 UNC holes in production machining applications
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