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OSG Spiral Flute Tap: 1 3/8"-8 8UN, H9 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1 3/8"-8 8UN, H9 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (1 3/8"-8 8UN, MPN 1650507808) is a 4-flute, modified bottoming chamfer tap with H9 / 2B-3B tolerance, designed for threading steel and stainless steel. 3G Electric interprets your demand and…

SKU 3G-OTH-219126

Brand
OSG
Item
Spiral Flute Tap: 1 3/8"-8 8UN, H9 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650507808
Type
H9 / 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 (1 3/8"-8 8UN, MPN 1650507808) is a 4-flute, modified bottoming chamfer tap with H9 / 2B-3B tolerance, designed for threading steel and stainless steel. 3G Electric interprets your demand and sources this genuine OSG tap, backed by specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right solution.

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 3/8"-8 8UN used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. Its spiral flute design efficiently evacuates chips upward, making it ideal for blind-hole threading applications where chip clearance is critical.

What are the specifications of the OSG spiral flute tap 1650507808?

The OSG spiral flute tap has a thread size of 1 3/8"-8 8UN, with a tolerance of H9 / 2B-3B. It features 4 flutes and a modified bottoming chamfer, optimized for threading steel and stainless steel.

Where to buy OSG spiral flute taps worldwide?

3G Electric supplies OSG spiral flute taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

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

Select an OSG spiral flute tap based on thread size, pitch, and tolerance class. For steel and stainless steel, use taps with H9 / 2B-3B tolerance and a modified bottoming chamfer for blind holes. Ensure proper cutting fluid and speed for 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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