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OSG Spiral Flute Tap: 1/2"-20 UNF, H11 / 2B, 3 Flute, Modified Bottoming Chamfer (MPN 2943001) - Oversized Spiral-Flute Taps
OSGOversized Spiral-Flute Taps

OSG Spiral Flute Tap: 1/2"-20 UNF, H11 / 2B, 3 Flute, Modified Bottoming Chamfer (MPN 2943001)

SKU 3G-OTH-211302

Brand
OSG
Item
Spiral Flute Tap: 1/2"-20 UNF, H11 / 2B, 3 Flute, Modified Bottoming Chamfer
Category
Oversized Spiral-Flute Taps
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Technical Specifications

OSG
Manufacturer Part Number
2943001
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG spiral flute tap used for?

An OSG spiral flute tap is used for threading blind holes in materials like steel and aluminum. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This 1/2"-20 UNF tap with modified bottoming chamfer is ideal for applications requiring threads close to the hole bottom.

What are the specifications of the OSG 2943001 tap?

The OSG 2943001 is a spiral flute tap with size 1/2"-20 UNF, H11 / 2B tolerance, 3 flutes, and a modified bottoming chamfer. It is an oversized tap designed for threading blind holes in various materials. The part number is 2943001.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling logistics, customs, and delivery to your location. As a global industrial solutions provider, we source genuine OSG cutting tools like the 2943001 spiral flute tap. Contact us for pricing and lead time on this item.

How to select the right OSG tap for blind holes?

For blind holes, choose a spiral flute tap like the OSG 2943001 to evacuate chips upward. Match the tap size (e.g., 1/2"-20 UNF) and tolerance (H11 / 2B) to your thread requirements. A modified bottoming chamfer allows threading closer to the hole bottom. 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-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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