We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

OSG Spiral Point Tap: 1/2"-13 UNC, 3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1/2"-13 UNC, 3B, 3 Flute, Plug Chamfer

The OSG Spiral Point Tap (1/2"-13 UNC, MPN 2881205) is a general-purpose spiral-point tap with a 3B thread class, plug chamfer, and TiN-coated high-speed steel construction. It features 3 flutes and is designed for…

SKU 3G-OTH-215285

Brand
OSG
Item
Spiral Point Tap: 1/2"-13 UNC, 3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
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
2881205
Type
3B, Plug Chamfer, TiN Coated High Speed Steel
Flute
3

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OSG Spiral Point Tap (1/2"-13 UNC, MPN 2881205) is a general-purpose spiral-point tap with a 3B thread class, plug chamfer, and TiN-coated high-speed steel construction. It features 3 flutes and is designed for through-hole threading applications.

Frequently Asked Questions

What is the OSG spiral point tap 1/2-13 UNC used for?

The OSG spiral point tap is designed for threading through holes in materials like steel and aluminum. Its spiral point pushes chips forward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing for creating precise internal threads.

What are the specifications of the OSG spiral point tap 1/2-13 UNC?

This tap has a 1/2-13 UNC thread size, 3B class fit, 3 flutes, and a plug chamfer. It is made from TiN coated high speed steel for wear resistance. The manufacturer part number is 2881205. It is suitable for through-hole threading applications.

Where to buy OSG spiral point taps worldwide?

You can source OSG spiral point taps through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times on this and other OSG tooling.

How to select the right OSG spiral point tap for a job?

Select based on thread size, material, and hole type. For through holes, a spiral point tap like this 1/2-13 UNC is ideal. Ensure the tap matches the required thread class (e.g., 3B) and coating (TiN for steel). 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: 1/2"-13 UNC, 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 2881200)
OSG
OSG Spiral Point Tap: 1/2"-13 UNC, 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 2881200)
OSG Spiral Point Tap: 1/2"-20 UNF, 3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2881305)
OSG
OSG Spiral Point Tap: 1/2"-20 UNF, 3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2881305)
OSG Spiral Point Tap: 1/2"-13 UNC, 3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 2881201)
OSG
OSG Spiral Point Tap: 1/2"-13 UNC, 3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 2881201)
OSG Spiral Point Tap: 5/16"-24 UNF, 3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2880905)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, 3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2880905)
OSG Spiral Point Tap: 1/2"-20 UNF, 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 2881300)
OSG
OSG Spiral Point Tap: 1/2"-20 UNF, 3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 2881300)
OSG Spiral Point Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1232408)
OSG
OSG Spiral Point Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1232408)

More from OSG

View all OSG parts
OSG
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1231205)
OSG Spiral Point Tap: 1/4"-20 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1220000)
OSG
OSG Spiral Point Tap: 1/4"-20 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1220000)
OSG Spiral Point Tap: #5-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1207000)
OSG
OSG Spiral Point Tap: #5-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1207000)
OSG Spiral Point Tap: 1 1/8"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850201)
OSG
OSG Spiral Point Tap: 1 1/8"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850201)
OSG Spiral Point Tap: #8-36 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1203208)
OSG
OSG Spiral Point Tap: #8-36 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1203208)
OSG Spiral Point Tap: #1-72 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1205408)
OSG
OSG Spiral Point Tap: #1-72 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1205408)
OSG Spiral Point Tap: M10x1.5 Metric, D6 / 4H-6H, 3 Flute, Plug Chamfer (MPN 1981601)
OSG
OSG Spiral Point Tap: M10x1.5 Metric, D6 / 4H-6H, 3 Flute, Plug Chamfer (MPN 1981601)
OSG Spiral Point Tap: #12-28 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1214401)
OSG
OSG Spiral Point Tap: #12-28 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1214401)