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OSG Spiral Flute Tap: 1/4"-28 UNF, H6 / 2B-3B, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1/4"-28 UNF, H6 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 1703808) is a spiral-flute tap for steel and stainless steel, featuring an H6 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your…

SKU 3G-OTH-218821

Brand
OSG
Item
Spiral Flute Tap: 1/4"-28 UNF, H6 / 2B-3B, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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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
1703808
Type
H6 / 2B-3B, Modified Bottoming Chamfer
Flute
3

Technical Documents

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

Product Description

The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 1703808) is a spiral-flute tap for steel and stainless steel, featuring an H6 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this precision threading tool, sources it from our extensive industrial network, and supports your application with specialist expertise across 14 departments.

Frequently Asked Questions

What is the OSG spiral flute tap 1/4-28 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its modified bottoming chamfer and 3-flute design efficiently evacuate chips upward, making it ideal for automotive, aerospace, and general manufacturing applications requiring precise UNF threads.

What are the specifications of the OSG 1703808 tap?

The OSG 1703808 is a 1/4-28 UNF spiral flute tap with a H6 / 2B-3B tolerance class, 3 flutes, and a modified bottoming chamfer. It is engineered for threading steel and stainless steel, delivering accurate thread fit and chip clearance in blind-hole operations.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 1703808 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial sourcing partner, we provide genuine OSG cutting tools across 14 departments, including threading solutions for steel and stainless steel.

How to select the correct OSG tap for stainless steel?

For stainless steel, choose a spiral flute tap like the OSG 1703808 with a modified bottoming chamfer to manage chip evacuation in blind holes. Ensure the tap size matches your thread specification (e.g., 1/4-28 UNF) and tolerance class (H6 / 2B-3B). 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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Cross-referenced by specification & description
OSG Spiral Flute Tap: 1/4"-28 UNF, H6 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1763701)
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