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OSG Oversized Spiral-Point Tap #4-40 UNC H7 2-Flute Plug Chamfer - Oversized Spiral-Point Taps
OSGOversized Spiral-Point Taps

OSG Oversized Spiral-Point Tap #4-40 UNC H7 2-Flute Plug Chamfer

OSG Oversized Spiral-Point Taps.

SKU 3G-OTH-251230

Brand
OSG
Item
Oversized Spiral-Point Tap #4-40 UNC H7 2-Flute Plug Chamfer
Category
Oversized Spiral-Point Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
2003100

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 #4-40 UNC used for?

The OSG Spiral Point Tap #4-40 UNC is designed for threading blind or through holes in ferrous and non-ferrous materials. Its spiral-point geometry pushes chips forward, reducing chip clogging and improving thread quality in production environments.

What are the specifications of the OSG Spiral Point Tap #4-40 UNC?

This OSG tap has a #4-40 UNC thread size, H7 tolerance, 2 flutes, plug chamfer, and is made from high-speed steel. The manufacturer part number is 2003100. It is an oversized spiral-point tap suitable for precision threading applications.

Where to buy OSG Spiral Point Tap #4-40 UNC worldwide?

You can source the OSG Spiral Point Tap #4-40 UNC worldwide through 3G Electric. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct OSG Spiral Point Tap for threading?

Select the OSG Spiral Point Tap based on thread size (e.g., #4-40 UNC), material type, and hole configuration. For through holes, spiral-point taps push chips ahead. Ensure the tap's H7 tolerance matches your required thread fit. Consult OSG's technical data for optimal 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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