OSG Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B-3B, 2 Flute
The OSG Spiral Flute Tap (1/4"-28 UNF) is a 2-flute, modified bottoming chamfer tap with H3 / 2B-3B tolerance, designed for threading steel and stainless steel. As a specialist in industrial solutions across 14…
SKU 3G-OTH-217816
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Spiral Flute Tap (1/4"-28 UNF) is a 2-flute, modified bottoming chamfer tap with H3 / 2B-3B tolerance, designed for threading steel and stainless steel. As a specialist in industrial solutions across 14 departments, 3G Electric sources and supports this genuine OSG tool (MPN 1650501908) with deep expertise in cutting tools and precision components.
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 2-flute design efficiently evacuate chips upward, making it ideal for producing threads to H3 / 2B-3B tolerance in production machining and maintenance applications.
What are the specifications of the OSG 1/4-28 UNF spiral flute tap?
The OSG tap has a 1/4-28 UNF thread size, H3 / 2B-3B tolerance, 2 flutes, and a modified bottoming chamfer. It is designed for threading blind holes in steel and stainless steel. The manufacturer part number is 1650501908.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 1/4-28 UNF spiral flute tap to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other OSG tooling.
How to select the right spiral flute tap for steel?
For threading blind holes in steel, choose a spiral flute tap with a modified bottoming chamfer to reach the hole bottom. Match the thread size (e.g., 1/4-28 UNF) and tolerance class (e.g., H3 / 2B-3B) to your application. OSG taps are a reliable choice for consistent thread quality.
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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.
