OSG Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer
The OSG Spiral Flute Tap (MPN 1430300) is a general-purpose spiral-flute tap in 1/4"-28 UNF size, featuring a bottoming chamfer and three flutes. It is made from high-speed steel with an H3 / 2B-3B tolerance class…
SKU 3G-OTH-229892
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Product Description
The OSG Spiral Flute Tap (MPN 1430300) is a general-purpose spiral-flute tap in 1/4"-28 UNF size, featuring a bottoming chamfer and three flutes. It is made from high-speed steel with an H3 / 2B-3B tolerance class, designed for threading blind holes in a range of materials.
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 1/4-28 UNF used for?
This OSG spiral flute tap is used for threading blind holes in materials such as steel and aluminum. Its spiral flute design evacuates chips upward, preventing clogging. The 1/4-28 UNF thread size and bottoming chamfer make it suitable for precision threading applications in automotive, aerospace, and general manufacturing.
What are the specifications of the OSG 1430300 tap?
The OSG 1430300 is a spiral flute tap with thread size 1/4-28 UNF, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is made of high-speed steel (HSS) and is designed for general purpose threading. The manufacturer part number is 1430300.
Where to buy OSG taps in worldwide?
You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 1430300 spiral flute tap.
How to select the right OSG tap for blind holes?
For blind holes, choose a spiral flute tap like the OSG 1430300 to evacuate chips upward. Ensure the thread size (1/4-28 UNF), chamfer type (bottoming), and tolerance (H3 / 2B-3B) match your application. Use proper cutting fluid and machine speed per OSG recommendations for optimal thread quality.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















