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OSG Spiral Point Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-214229

Brand
OSG
Item
Spiral Point Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute
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
2842700

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 used for through-hole threading in metalworking. Its spiral point design pushes chips ahead, preventing clogging and ensuring clean threads in production environments across industries like automotive and aerospace.

What are the specifications of the OSG 2842700 tap?

The OSG 2842700 is a 1/2"-20 UNF spiral point tap with a plug chamfer, 3 flutes, and a thread tolerance of H7 / 2B-3B. It is designed for general-purpose through-hole threading in steel and non-ferrous materials.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 2842700 to worldwide locations. We handle full logistics and customs clearance, sourcing genuine OSG cutting tools for industrial maintenance and production needs globally.

How to select the right OSG tap for a job?

Select an OSG tap based on thread size, pitch, hole type (through or blind), and material. For through holes, a spiral point tap like the 2842700 is ideal. Match the thread tolerance (e.g., H7 / 2B-3B) to your application requirements.

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: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2842701)
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OSG Spiral Point Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2842701)
OSG Spiral Point Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2842708)
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OSG Spiral Point Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2842708)
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. The spiral point design directs chips forward to reduce clogging. Suitable for production environments requiring precise UNC threads
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General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. The spiral point design directs chips forward to reduce clogging. Suitable for production environments requiring precise UNC threads
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 7/16"-20 UNF thread size, H7 / 2B-3B tolerance, 3 flutes, and plug chamfer. The spiral-point geometry pushes chips forward for efficient chip evacuation in production tapping
OSG
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 7/16"-20 UNF thread size, H7 / 2B-3B tolerance, 3 flutes, and plug chamfer. The spiral-point geometry pushes chips forward for efficient chip evacuation in production tapping
OSG Spiral Point Tap: 1/4"-20 UNC, H7 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2854800)
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OSG Spiral Point Tap: 1/4"-20 UNC, H7 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2854800)
This spiral-point tap is designed for through-hole threading in general purpose machining. Its spiral point design pushes chips ahead, reducing chip clogging. Suitable for ferrous and non-ferrous materials in manufacturing, automotive, and aerospace applications
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This spiral-point tap is designed for through-hole threading in general purpose machining. Its spiral point design pushes chips ahead, reducing chip clogging. Suitable for ferrous and non-ferrous materials in manufacturing, automotive, and aerospace applications

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General purpose spiral-point tap for threading through or blind holes. TiN coated high speed steel construction with plug chamfer and 3 flutes. Spiral point design pushes chips forward for efficient chip evacuation in production tapping
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General purpose spiral-point tap for through-hole threading in metals. Black oxide high-speed steel construction with plug chamfer and 2 flutes. Spiral point design pushes chips forward to reduce clogging. Thread size #4-48 UNF, tolerance H2 / 2B-3B
This OSG spiral-point tap is designed for threading through-holes in metal, steel, and alloys. The spiral-point design pushes chips forward, preventing clogging and enabling faster production. It features a 7/16"-14 UNC thread size, 2B class fit, 3 flutes, and a plug chamfer, made from high-speed steel (HSS). Common applications include automotive, aerospace, and general manufacturing where clean, accurate UNC threads are required
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This OSG spiral-point tap is designed for threading through-holes in metal, steel, and alloys. The spiral-point design pushes chips forward, preventing clogging and enabling faster production. It features a 7/16"-14 UNC thread size, 2B class fit, 3 flutes, and a plug chamfer, made from high-speed steel (HSS). Common applications include automotive, aerospace, and general manufacturing where clean, accurate UNC threads are required