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OSG Spiral Point Tap: 1/4"-20 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1/4"-20 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer

The OSG Spiral Point Tap (1/4"-20 UNC, MPN 1220001) is a general-purpose spiral-point tap with a plug chamfer, black oxide high-speed steel construction, and H1 / 2B-3B thread class. It features 2 flutes and is…

SKU 3G-OTH-214751

Brand
OSG
Item
Spiral Point Tap: 1/4"-20 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer
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
1220001
Type
H1 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
2

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Point Tap (1/4"-20 UNC, MPN 1220001) is a general-purpose spiral-point tap with a plug chamfer, black oxide high-speed steel construction, and H1 / 2B-3B thread class. It features 2 flutes and is designed for through-hole tapping applications.

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. It is ideal for high-speed production tapping in steel, aluminum, and other materials, ensuring clean threads in applications like automotive and general manufacturing.

What are the specifications of the OSG 1/4"-20 UNC spiral point tap?

This OSG tap has a 1/4"-20 UNC thread size, H1 / 2B-3B tolerance, 2 flutes, and a plug chamfer. It is made of black oxide high-speed steel (MPN 1220001). The H1 limit ensures precise thread fit for general-purpose tapping in through holes.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide. As a global industrial solutions provider, we handle sourcing, logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the OSG 1/4"-20 UNC spiral point tap (MPN 1220001) and other cutting tools.

How to select the right spiral point tap for through holes?

Select a spiral point tap based on thread size, material, and hole type. For through holes, use a plug or bottoming chamfer. Match the tap tolerance (e.g., H1) to the required thread class (2B). OSG taps are suitable for steel and aluminum; consult a technical datasheet for 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
OSG Spiral Point Tap: 1/4"-20 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1220000)
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OSG Spiral Point Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1230208)
OSG Spiral Point Tap: 1/4"-28 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1220400)
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OSG Spiral Point Tap: 1/4"-28 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1220400)

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