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OSG 7/8"-9 UNC Spiral-Flute Tap, H4 / 2B-3B, 4 Flute, Modified Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 7/8"-9 UNC Spiral-Flute Tap, H4 / 2B-3B, 4 Flute, Modified Bottoming Chamfer

The OSG Spiral Flute Tap (7/8"-9 UNC, MPN 1726201) is a 4-flute tap with H4 / 2B-3B tolerance and a modified bottoming chamfer, designed for threading steel and stainless steel. 3G Electric interprets this demand and…

SKU 3G-OTH-217914

Brand
OSG
Item
7/8"-9 UNC Spiral-Flute Tap, H4 / 2B-3B, 4 Flute, Modified Bottoming Chamfer
Part Number
1726201
Category
Spiral-Flute Taps for Steel & Stainless Steel
Available to Order
Also known as:1726201OSG
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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
1726201
Type
H4 / 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 (7/8"-9 UNC, MPN 1726201) is a 4-flute tap with H4 / 2B-3B tolerance and a modified bottoming chamfer, designed for threading steel and stainless steel. 3G Electric interprets this demand and sources the genuine OSG product, backed by specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is the OSG spiral flute tap 1726201 used for?

The OSG spiral flute tap 1726201 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG tap 1726201?

The OSG tap 1726201 is a 7/8"-9 UNC spiral flute tap with 4 flutes, a modified bottoming chamfer, and an H4 / 2B-3B tolerance class. It is designed for threading steel and stainless steel. The H4 tolerance ensures precise fit for 2B-3B class threads, making it suitable for high-accuracy applications.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps, including model 1726201, to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact our team to place an order or request a quote for this and other OSG threading tools.

How to select the right OSG tap for steel?

For steel and stainless steel, choose a spiral flute tap like the OSG 1726201 for blind holes, as it clears chips upward. Match the tap size (7/8"-9 UNC) and tolerance (H4 / 2B-3B) to your thread requirements. Ensure the chamfer type (modified bottoming) suits your hole depth. Always use appropriate cutting fluid for material and speed.

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
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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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