Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
OSG Spiral Flute Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute

OSG Spiral-Flute Taps for Steel & Stainless Steel.

SKU 3G-OTH-218733

Brand
OSG
Item
Spiral Flute Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
1754101

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

OSG Spiral-Flute Taps for Steel & Stainless Steel.

Frequently Asked Questions

What is OSG spiral flute tap #4-40 UNC used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging, making it ideal for production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of OSG spiral flute tap #4-40 UNC?

The OSG spiral flute tap has a #4-40 UNC thread size, H3 / 2B-3B tolerance, 2 flutes, and a modified bottoming chamfer. It is designed for threading steel and stainless steel. The manufacturer part number is 1754101.

Where to buy OSG spiral flute tap #4-40 UNC worldwide?

3G Electric supplies and delivers OSG spiral flute taps worldwide. We handle full logistics and customs clearance, ensuring your order reaches any global destination. Contact us for availability and lead time on this and other OSG cutting tools.

How to select the right spiral flute tap for steel?

For steel, choose a spiral flute tap with a modified bottoming chamfer for blind holes. Ensure the thread size matches your application, like #4-40 UNC. OSG taps offer H3 / 2B-3B tolerance for precise fit. Always match tap material to workpiece hardness for best results.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1752001)
OSG
OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1752001)
Spiral-flute tap designed for threading blind holes in steel and stainless steel. The spiral flute lifts chips upward to prevent clogging, while the modified bottoming chamfer enables threading close to the hole bottom. Features 4 flutes and H3 / 2B-3B tolerance class. Suitable for general machining applications requiring UNC threads
OSG
Spiral-flute tap designed for threading blind holes in steel and stainless steel. The spiral flute lifts chips upward to prevent clogging, while the modified bottoming chamfer enables threading close to the hole bottom. Features 4 flutes and H3 / 2B-3B tolerance class. Suitable for general machining applications requiring UNC threads
Spiral-flute tap with 4 flutes and modified bottoming chamfer, designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward to prevent clogging. Thread limit H3 / 2B-3B. Suitable for general manufacturing applications requiring precise internal threads in materials that produce long, stringy chips
OSG
Spiral-flute tap with 4 flutes and modified bottoming chamfer, designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward to prevent clogging. Thread limit H3 / 2B-3B. Suitable for general manufacturing applications requiring precise internal threads in materials that produce long, stringy chips
OSG Spiral Flute Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1754108)
OSG
OSG Spiral Flute Tap: #4-40 UNC, H3 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1754108)
Spiral flute tap designed for threading steel and stainless steel. The spiral flute geometry lifts chips upward, making it suitable for blind-hole applications. Features a modified bottoming chamfer for threading close to the hole bottom. Thread size: 1"-8 UNC, tolerance class H4 / 2B-3B, 4 flutes
OSG
Spiral flute tap designed for threading steel and stainless steel. The spiral flute geometry lifts chips upward, making it suitable for blind-hole applications. Features a modified bottoming chamfer for threading close to the hole bottom. Thread size: 1"-8 UNC, tolerance class H4 / 2B-3B, 4 flutes
Spiral-flute tap for threading blind holes in steel and stainless steel. Thread size 5/8"-18 UNF, tolerance H3 / 2B-3B, 4 flutes, modified bottoming chamfer. Chip evacuation upward prevents clogging in blind-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Thread size 5/8"-18 UNF, tolerance H3 / 2B-3B, 4 flutes, modified bottoming chamfer. Chip evacuation upward prevents clogging in blind-hole applications

More from OSG

View all OSG parts →
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size, H3 tolerance class, 2B-3B fit, 3-flute design with bottoming chamfer. The spiral flute evacuates chips upward, preventing clogging in deep or blind-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size, H3 tolerance class, 2B-3B fit, 3-flute design with bottoming chamfer. The spiral flute evacuates chips upward, preventing clogging in deep or blind-hole applications
Spiral-flute tap for threading blind holes in steel and stainless steel. M8x0.75 metric thread, D4 / 4H-6H tolerance class, 3 flutes, modified bottoming chamfer. The spiral flute design lifts chips upward, preventing clogging and ensuring clean threads
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. M8x0.75 metric thread, D4 / 4H-6H tolerance class, 3 flutes, modified bottoming chamfer. The spiral flute design lifts chips upward, preventing clogging and ensuring clean threads
OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1732008)
OSG
OSG Spiral Flute Tap: #4-40 UNC, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1732008)
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size with bottoming chamfer and 3 flutes. Thread tolerance H2 / 2B-3B for producing Class 2B or 3B internal threads. Chip evacuation upward prevents clogging in deep-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size with bottoming chamfer and 3 flutes. Thread tolerance H2 / 2B-3B for producing Class 2B or 3B internal threads. Chip evacuation upward prevents clogging in deep-hole applications
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size with H3 / 2B-3B tolerance class. 2-flute design with modified bottoming chamfer for efficient chip evacuation upward. Suitable for production tapping applications where chip clearance is critical
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size with H3 / 2B-3B tolerance class. 2-flute design with modified bottoming chamfer for efficient chip evacuation upward. Suitable for production tapping applications where chip clearance is critical
Spiral-flute tap with 4 flutes and modified bottoming chamfer, tolerance H3 / 2B-3B. Designed for threading blind holes in steel and stainless steel, the spiral flute design evacuates chips upward to prevent clogging and ensure clean threads in deep-hole applications
OSG
Spiral-flute tap with 4 flutes and modified bottoming chamfer, tolerance H3 / 2B-3B. Designed for threading blind holes in steel and stainless steel, the spiral flute design evacuates chips upward to prevent clogging and ensure clean threads in deep-hole applications
Spiral-flute tap for threading blind holes in steel and stainless steel. Features H5 tolerance for 2B-3B thread classes, modified bottoming chamfer, and 3 flutes for upward chip evacuation. Suitable for general manufacturing applications requiring precise internal threads
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features H5 tolerance for 2B-3B thread classes, modified bottoming chamfer, and 3 flutes for upward chip evacuation. Suitable for general manufacturing applications requiring precise internal threads
Metric spiral-flute tap with M48x2 thread size, D9 / 4H-6H tolerance, 4 flutes, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute evacuates chips upward to prevent clogging, enabling threading close to the hole bottom
OSG
Metric spiral-flute tap with M48x2 thread size, D9 / 4H-6H tolerance, 4 flutes, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute evacuates chips upward to prevent clogging, enabling threading close to the hole bottom