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OSG Spiral Flute Tap: 1 1/8"-7 UNC, H9 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1 1/8"-7 UNC, H9 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (1 1/8"-7 UNC, MPN 1650507108) is a spiral-flute tap for steel and stainless steel, featuring a H9 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets this…

SKU 3G-OTH-218767

Brand
OSG
Item
Spiral Flute Tap: 1 1/8"-7 UNC, H9 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1650507108
Type
H9 / 2B-3B, Modified Bottoming Chamfer
Flute
4

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1 1/8"-7 UNC, MPN 1650507108) is a spiral-flute tap for steel and stainless steel, featuring a H9 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets this demand and sources the genuine OSG product, supporting your operation across 14 industrial departments with specialist depth in cutting tools.

Frequently Asked Questions

What is the OSG spiral flute tap used for?

The OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. The modified bottoming chamfer allows threading close to the bottom of the hole, making it ideal for high-precision applications in automotive, aerospace, and general manufacturing.

What are the specifications of the OSG spiral flute tap?

This OSG tap has a size of 1 1/8"-7 UNC with a H9 / 2B-3B tolerance class. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 1650507108. It is designed for threading steel and stainless steel, providing accurate thread formation and chip evacuation in blind-hole applications.

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. We supply genuine OSG cutting tools for manufacturing and maintenance operations across industries.

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, choose a tap with H9 / 2B-3B tolerance for precise fit. The modified bottoming chamfer is ideal for blind holes. Ensure the tap matches your hole depth and machine capability. Consult OSG's technical data for optimal speeds and feeds.

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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Spiral-flute tap for threading steel and stainless steel. Thread size 1 3/8"-8 8UN with H9 / 2B-3B tolerance. 4-flute design with modified bottoming chamfer. Suitable for blind-hole threading where chip evacuation is required
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Spiral-flute tap for threading steel and stainless steel. Thread size 1 3/8"-8 8UN with H9 / 2B-3B tolerance. 4-flute design with modified bottoming chamfer. Suitable for blind-hole threading where chip evacuation is required
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 4 flutes to evacuate chips upward, preventing clogging in deep or blind-hole applications. Thread size: 1 1/4"-7 UNC, tolerance H10 / 2B-3B
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 4 flutes to evacuate chips upward, preventing clogging in deep or blind-hole applications. Thread size: 1 1/4"-7 UNC, tolerance H10 / 2B-3B
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 4 flutes to evacuate chips upward, preventing clogging. Tolerance class H9 / 2B-3B. Thread size 1 1/8"-8 8UN
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 4 flutes to evacuate chips upward, preventing clogging. Tolerance class H9 / 2B-3B. Thread size 1 1/8"-8 8UN

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