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OSG Spiral Point Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-215292

Brand
OSG
Item
Spiral Point Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute
Category
General Purpose 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
2811408

Technical Documents

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

Product Description

OSG General Purpose Spiral-Point Taps.

Frequently Asked Questions

What is an OSG spiral point tap used for?

An OSG spiral point tap is designed for through-hole threading in production environments. Its spiral point pushes chips ahead, reducing chip clogging and enabling faster tapping in materials like steel, aluminum, and cast iron across machining, automotive, and general manufacturing applications.

What are the specifications of OSG tap #4-40 UNC 2811408?

The OSG tap 2811408 is a #4-40 UNC spiral point tap with an H3 / 2B-3B tolerance class, 2 flutes, and a plug chamfer. It is designed for general purpose through-hole threading and is suitable for a wide range of ferrous and non-ferrous materials.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the #4-40 UNC spiral point tap 2811408 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility, ensuring you receive genuine OSG cutting tools for your production needs.

How to select the right OSG tap for a threading job?

Select an OSG tap based on thread size (e.g., #4-40 UNC), hole type (through or blind), material, and tolerance class (H3 / 2B-3B). Spiral point taps suit through holes; spiral flute taps suit blind holes. 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 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: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816300)
OSG
OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816300)
OSG spiral-point tap for through-hole threading, #4-40 UNC thread size, H4 / 2B-3B tolerance class, 2-flute design with plug chamfer. The spiral-point geometry pushes chips ahead to reduce clogging and enable faster production. Suitable for general-purpose tapping in ferrous and non-ferrous materials
OSG
OSG spiral-point tap for through-hole threading, #4-40 UNC thread size, H4 / 2B-3B tolerance class, 2-flute design with plug chamfer. The spiral-point geometry pushes chips ahead to reduce clogging and enable faster production. Suitable for general-purpose tapping in ferrous and non-ferrous materials
OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816308)
OSG
OSG Spiral Point Tap: #4-40 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2816308)
OSG Spiral Point Tap: #8-32 UNC, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812908)
OSG
OSG Spiral Point Tap: #8-32 UNC, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812908)
OSG Spiral Point Tap: #6-32 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2812508)
OSG
OSG Spiral Point Tap: #6-32 UNC, H4 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2812508)
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a plug chamfer, 2 flutes, and H2 / 2B-3B thread class tolerance. Made from high-speed steel. Suitable for general tapping operations where chips are pushed ahead to reduce clogging
OSG
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a plug chamfer, 2 flutes, and H2 / 2B-3B thread class tolerance. Made from high-speed steel. Suitable for general tapping operations where chips are pushed ahead to reduce clogging

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This spiral-point tap is designed for threading blind or through holes in ferrous and non-ferrous materials. The spiral point pushes chips forward to reduce clogging, enabling efficient tapping in production environments. Made from high-speed steel with a plug chamfer and 3-flute design, it is suitable for general-purpose tapping applications
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This OSG spiral-point tap is designed for threading blind or through holes in ferrous and non-ferrous materials. The spiral-point design pushes chips forward, reducing clogging and breakage. It features a black oxide high-speed steel construction for wear resistance and lubricity, with an H3 / 2B-3B tolerance, plug chamfer, and 2 flutes
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This spiral-point tap is designed for threading through holes and blind holes in ferrous and non-ferrous materials. Its spiral point design pushes chips forward, reducing chip clogging. The tap features a plug chamfer, 3 flutes, and a black oxide finish on high-speed steel. It is suitable for general manufacturing applications requiring precise UNC threads
General purpose spiral-point tap for threading through holes in ferrous and non-ferrous materials. Made from high-speed steel with a plug chamfer and 3 flutes. Thread tolerance H3 / 2B-3B. The spiral point design pushes chips forward to reduce clogging and breakage
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General purpose spiral-point tap for threading through holes in ferrous and non-ferrous materials. Made from high-speed steel with a plug chamfer and 3 flutes. Thread tolerance H3 / 2B-3B. The spiral point design pushes chips forward to reduce clogging and breakage