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OSG Spiral Flute Tap: 7/8"-14 UNF, H4 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 7/8"-14 UNF, H4 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (7/8"-14 UNF) is a 4-flute, modified-bottoming-chamfer tap for steel and stainless steel, with H4 / 2B-3B tolerance (MPN 1650505108). 3G Electric interprets your demand for this OEM-specified…

SKU 3G-OTH-218551

Brand
OSG
Item
Spiral Flute Tap: 7/8"-14 UNF, H4 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650505108
Type
H4 / 2B-3B, Modified Bottoming Chamfer
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (7/8"-14 UNF) is a 4-flute, modified-bottoming-chamfer tap for steel and stainless steel, with H4 / 2B-3B tolerance (MPN 1650505108). 3G Electric interprets your demand for this OEM-specified tool, sources it across 14 industrial departments, and supports with specialist depth in controls and pumps.

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 7/8"-14 UNF 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. It is commonly used in automotive, aerospace, and general manufacturing applications requiring precise internal threads.

What are the specifications of the OSG spiral flute tap 7/8"-14 UNF?

This OSG tap has a 7/8"-14 UNF thread size, H4 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. The manufacturer part number is 1650505108. It is designed for threading steel and stainless steel, providing accurate thread fit for critical assemblies.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute 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 this OSG tap model 1650505108.

How to select the correct OSG spiral flute tap for steel?

Select an OSG spiral flute tap based on thread size, tolerance class, and material. For steel and stainless steel, use taps with H4 / 2B-3B tolerance for precise fit. Ensure the chamfer type matches your hole depth—modified bottoming chamfer works for blind holes. Always match the tap to the material hardness.

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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