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OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Point Tap (1/2"-20 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H2 / 2B-3B (MPN 1227600).

SKU 3G-OTH-215810

Brand
OSG
Item
Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1227600
Type
H2 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
3

Technical Documents

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

Product Description

The OSG Spiral Point Tap (1/2"-20 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H2 / 2B-3B (MPN 1227600).

Frequently Asked Questions

What is the OSG spiral point tap 1/2-20 UNF used for?

This OSG spiral point tap is designed for threading blind or through holes in ferrous and non-ferrous materials. Its 3-flute, plug chamfer design pushes chips forward, making it ideal for production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 1227600 tap?

The OSG 1227600 is a 1/2-20 UNF spiral point tap with a H2 / 2B-3B tolerance, 3 flutes, plug chamfer, and high-speed steel construction. It is a general-purpose tap suitable for threading to Class 2B or 3B fit.

Where to buy OSG taps in worldwide?

You can source the OSG 1227600 tap through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine OSG tooling for your threading operations.

How to select the correct OSG tap for UNF threads?

To select the correct OSG tap, match the thread size (1/2-20 UNF), chamfer type (plug for general use), and tolerance class (H2 for 2B-3B fit). Consider material hardness and hole type—spiral point taps are best for through holes. Consult OSG's technical data for optimal performance.

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, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1227608)
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OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1227608)
OSG Spiral Point Tap: 1/2"-20 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1222600)
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OSG Spiral Point Tap: 1/2"-20 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1222600)
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OSG Spiral Point Tap: 7/16"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1227200)
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OSG Spiral Point Tap: 5/16"-24 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1226200)
OSG Spiral Point Tap: 3/8"-24 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1226800)
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OSG Spiral Point Tap: 3/8"-24 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1226800)
OSG Spiral Point Tap: 5/16"-24 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1226400)
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OSG Spiral Point Tap: 5/16"-24 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1226400)

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