OSG Spiral Flute Tap: 1/2"-28 UNEF, H4 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/2"-28 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1650506108).
SKU 3G-OTH-219117
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The OSG Spiral Flute Tap (1/2"-28 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1650506108).
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the 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 chip clogging. The modified bottoming chamfer allows threading close to the bottom of the hole. It is commonly used in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG spiral flute tap 1/2"-28 UNEF?
The OSG spiral flute tap has a thread size of 1/2"-28 UNEF, with a H4 / 2B-3B tolerance class. It features 3 flutes and a modified bottoming chamfer. The manufacturer part number is 1650506108. This tap is designed for threading steel and stainless steel materials.
Where to buy the OSG spiral flute tap 1/2"-28 UNEF worldwide?
You can source the OSG spiral flute tap 1/2"-28 UNEF through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time. We supply genuine OSG cutting tools for industrial applications.
How to select the correct OSG spiral flute tap for steel?
Select an OSG spiral flute tap based on thread size, pitch, and material. For steel and stainless steel, use a tap with H4 / 2B-3B tolerance for precise fit. The modified bottoming chamfer is ideal for blind holes. Ensure the tap matches your hole depth and thread class requirements. Consult OSG technical data for optimal performance.
Used in
Common applications for OSGOSG 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.
