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OSG Spiral Point Tap: 1/4"-20 UNC, H7 / 2B-3B, 3 Flute - Spiral-Point Taps for Steel & Stainless Steel
OSGSpiral-Point Taps for Steel & Stainless Steel

OSG Spiral Point Tap: 1/4"-20 UNC, H7 / 2B-3B, 3 Flute

SKU 3G-OTH-224021

Brand
OSG
Item
Spiral Point Tap: 1/4"-20 UNC, H7 / 2B-3B, 3 Flute
Category
Spiral-Point Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1728401
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG spiral point tap used for?

OSG spiral point taps are designed for threading blind or through holes in steel and stainless steel. The spiral point pushes chips ahead, preventing clogging. This 1/4"-20 UNC plug chamfer tap is ideal for production tapping in automotive, aerospace, and general manufacturing.

What are the specifications of OSG spiral point tap 1728401?

This OSG spiral point tap has a 1/4"-20 UNC thread, H7 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for steel and stainless steel. The manufacturer part number is 1728401. These specs ensure precise thread fit and chip evacuation in production environments.

Where to buy OSG spiral point tap 1728401 worldwide?

3G Electric supplies OSG spiral point taps worldwide. We source genuine OSG cutting tools and handle full logistics, customs clearance, and delivery to your facility globally. Contact us for pricing and lead time on this 1/4"-20 UNC tap.

How to select the right spiral point tap for steel?

For steel and stainless steel, choose a spiral point tap with a plug chamfer for through holes or blind holes with sufficient clearance. Match thread size (e.g., 1/4"-20 UNC) and tolerance class (H7 / 2B-3B) to your application. OSG taps offer consistent geometry for reliable chip control.

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 spiral-point taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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