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OSG Oversized Spiral-Point Tap: 1/2"-13 UNC, H11 / 2B, 3 Flute, Plug Chamfer - Oversized Spiral-Point Taps
OSGOversized Spiral-Point Taps

OSG Oversized Spiral-Point Tap: 1/2"-13 UNC, H11 / 2B, 3 Flute, Plug Chamfer

OSG Oversized Spiral-Point Taps.

SKU 3G-OTH-251169

Brand
OSG
Item
Oversized Spiral-Point Tap: 1/2"-13 UNC, H11 / 2B, 3 Flute, Plug Chamfer
Category
Oversized Spiral-Point Taps
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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
2857400

Technical Documents

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

Product Description

OSG Oversized Spiral-Point Taps.

Frequently Asked Questions

What is the OSG spiral point tap 2857400 used for?

The OSG spiral point tap 2857400 is used for threading through holes in metal, particularly in production environments. Its spiral point design pushes chips forward, reducing clogging and breakage. It is suitable for tapping steel, stainless steel, and other ferrous materials in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG tap 2857400?

The OSG tap 2857400 is a 1/2"-13 UNC oversized spiral point tap with H11 / 2B tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole threading and is made from high-speed steel. The oversized H11 tolerance allows for controlled thread fit in applications requiring coating or plating.

Where to buy the OSG tap 2857400 worldwide?

You can source the OSG tap 2857400 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 time; we provide competitive pricing and reliable sourcing for this OSG cutting tool.

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

To select the correct OSG spiral point tap, match the thread size (e.g., 1/2"-13 UNC), tolerance class (H11 for oversized), and chamfer type (plug for through holes) to your material and hole depth. For coated threads, choose an oversized tap like this one. 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 oversized 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: 3/8"-16 UNC, H11 / 2B, 3 Flute, Plug Chamfer (MPN 2856600)
OSG
OSG Spiral Point Tap: 3/8"-16 UNC, H11 / 2B, 3 Flute, Plug Chamfer (MPN 2856600)
OSG Spiral Point Tap: 5/8"-11 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843200)
OSG
OSG Spiral Point Tap: 5/8"-11 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843200)
OSG Spiral Point Tap: 7/8"-9 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2844000)
OSG
OSG Spiral Point Tap: 7/8"-9 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2844000)
OSG Spiral Point Tap: 3/4"-10 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843600)
OSG
OSG Spiral Point Tap: 3/4"-10 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843600)
OSG Spiral Point Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843400)
OSG
OSG Spiral Point Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843400)
OSG Spiral Point Tap: 3/4"-16 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843800)
OSG
OSG Spiral Point Tap: 3/4"-16 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2843800)

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