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OSG Spiral Flute Tap: 1/2"-28 UNEF, H4 / 2B-3B, 3 Flute, Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1/2"-28 UNEF, H4 / 2B-3B, 3 Flute, Bottoming Chamfer

SKU 3G-OTH-217880

Brand
OSG
Item
Spiral Flute Tap: 1/2"-28 UNEF, H4 / 2B-3B, 3 Flute, Bottoming Chamfer
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650513008
Type
H4 / 2B-3B, Bottoming Chamfer, V Coated Powdered Metal
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG spiral flute tap 1/2-28 UNEF used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging. The V coated powdered metal construction provides wear resistance for extended tool life in demanding production environments.

What are the specifications of OSG spiral flute tap 1650513008?

This OSG tap has a 1/2-28 UNEF thread size, H4 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is made of V coated powdered metal. The manufacturer part number is 1650513008. These specs ensure precise threading in steel and stainless steel blind holes.

Where to buy OSG spiral flute tap 1650513008 worldwide?

3G Electric supplies OSG taps worldwide. We handle full logistics and customs clearance to deliver this 1/2-28 UNEF spiral flute tap to your facility. Contact us for a quote on this V coated powdered metal bottoming tap for steel and stainless steel applications.

How to select the right spiral flute tap for steel?

For blind holes in steel, choose a spiral flute tap with a bottoming chamfer to thread close to the hole bottom. Match the thread size (e.g., 1/2-28 UNEF) and tolerance class (H4 / 2B-3B) to your application. OSG's V coated powdered metal taps offer good wear resistance for production runs.

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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