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OSG Spiral Flute Tap: 1"-8 UNC, H4 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1"-8 UNC, H4 / 2B-3B, 4 Flute

SKU 3G-OTH-217921

Brand
OSG
Item
Spiral Flute Tap: 1"-8 UNC, H4 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1726401
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG spiral flute tap 1726401 used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its 4-flute design and modified bottoming chamfer efficiently evacuate chips upward, making it ideal for automotive, aerospace, and general manufacturing applications requiring precise internal threads.

What are the specifications of the OSG 1726401 tap?

The OSG 1726401 is a 1"-8 UNC spiral flute tap with a H4 / 2B-3B tolerance class. It has 4 flutes and a modified bottoming chamfer, designed for threading steel and stainless steel. The H4 limit ensures consistent thread fit for high-precision work.

Where to buy OSG taps like 1726401 worldwide?

3G Electric supplies OSG taps including the 1726401 to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision threading tool.

How to select the right OSG tap for steel?

For steel, choose a spiral flute tap like the OSG 1726401 when threading blind holes. Match the tap size (1"-8 UNC), chamfer type (modified bottoming), and tolerance (H4 / 2B-3B) to your thread class and material hardness. Consult OSG's technical data for optimal speeds and lubrication.

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-flute 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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