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OSG Spiral-Flute Tap #4-48 UNF H2 2B-3B 2-Flute Modified - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral-Flute Tap #4-48 UNF H2 2B-3B 2-Flute Modified

OSG Spiral-Flute Taps for Steel & Stainless Steel.

SKU 3G-OTH-217765

Brand
OSG
Item
Spiral-Flute Tap #4-48 UNF H2 2B-3B 2-Flute Modified
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
1748801

Technical Documents

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

Product Description

OSG Spiral-Flute Taps for Steel & Stainless Steel.

Frequently Asked Questions

What is the OSG spiral flute tap #4-48 UNF used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. The #4-48 UNF size and modified bottoming chamfer make it suitable for through-hole or blind-hole applications where chip evacuation is critical. It is commonly used in precision machining, automotive, and aerospace manufacturing.

What are the specifications of the OSG spiral flute tap 1748801?

The OSG spiral flute tap, MPN 1748801, has a #4-48 UNF thread size, H2 / 2B-3B tolerance class, and a 2-flute design with a modified bottoming chamfer. It is a spiral-flute tap optimized for steel and stainless steel. These specs ensure accurate thread forming and efficient chip removal in production environments.

Where to buy OSG spiral flute taps in worldwide?

3G Electric supplies OSG spiral flute taps like the #4-48 UNF (1748801) to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. As a global industrial distributor, we source and deliver these precision taps for manufacturing and maintenance needs. Contact us for availability and lead time.

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

To select the correct OSG spiral flute tap for steel, match the thread size (e.g., #4-48 UNF), tolerance class (H2 / 2B-3B), and chamfer type (modified bottoming) to your application. Spiral flute taps are ideal for blind holes in steel and stainless steel as they pull chips upward. Always verify material hardness and tap coating for optimal performance.

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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Cross-referenced by specification & description
OSG Spiral Flute Tap: #4-48 UNF, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0135808)
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OSG Spiral Flute Tap: #4-48 UNF, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0135808)
This spiral-flute tap is designed for threading steel and stainless steel. The #4-48 UNF size with bottoming chamfer allows threading to the bottom of blind holes. It features 3 flutes and H2 tolerance for 2B-3B class threads
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This spiral-flute tap is designed for threading steel and stainless steel. The #4-48 UNF size with bottoming chamfer allows threading to the bottom of blind holes. It features 3 flutes and H2 tolerance for 2B-3B class threads
Spiral-flute tap for threading blind holes in steel and stainless steel. #4-40 UNC thread size, H2 tolerance for class 2B-3B fit. 2-flute design with modified bottoming chamfer evacuates chips upward to prevent clogging in deep-hole applications
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Spiral-flute tap for threading blind holes in steel and stainless steel. #4-40 UNC thread size, H2 tolerance for class 2B-3B fit. 2-flute design with modified bottoming chamfer evacuates chips upward to prevent clogging in deep-hole applications
OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1763901)
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OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1763901)
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a #4-40 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, and modified bottoming chamfer. The spiral flute design evacuates chips upward to prevent clogging. Suitable for materials up to 850 MPa tensile strength
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a #4-40 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, and modified bottoming chamfer. The spiral flute design evacuates chips upward to prevent clogging. Suitable for materials up to 850 MPa tensile strength
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3 flutes to lift chips upward, preventing clogging. H4 tolerance ensures precise thread fit for 2B-3B class applications. Suitable for general manufacturing requiring internal threads
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3 flutes to lift chips upward, preventing clogging. H4 tolerance ensures precise thread fit for 2B-3B class applications. Suitable for general manufacturing requiring internal threads

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