We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

OSG 1/2"-20 UNF Spiral-Flute Extension Tap - Spiral-Flute Extension Taps for Steel & Stainless Steel
OSGSpiral-Flute Extension Taps for Steel & Stainless Steel

OSG 1/2"-20 UNF Spiral-Flute Extension Tap

OSG Spiral-Flute Extension Taps for Steel & Stainless Steel.

SKU 3G-OTH-315330

Brand
OSG
Item
1/2"-20 UNF Spiral-Flute Extension Tap
Category
Spiral-Flute Extension 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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
1769201

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 Extension Taps for Steel & Stainless Steel.

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 extension tap 1/2"-20 UNF used for?

This OSG extension tap is designed for threading blind holes in steel and stainless steel. Its spiral-flute design evacuates chips upward, making it ideal for deep-hole tapping where chip clearance is critical. The modified bottoming chamfer allows threading close to the bottom of the hole.

What are the specifications of the OSG extension tap MPN 1769201?

The OSG extension tap MPN 1769201 has a thread size of 1/2"-20 UNF, with a tolerance class of H3 / 2B-3B. It features 3 flutes and a modified bottoming chamfer. This spiral-flute tap is designed for steel and stainless steel applications.

Where to buy OSG extension taps worldwide?

You can source OSG extension taps worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead times on this OSG tap.

How to select the correct OSG extension tap for stainless steel?

For stainless steel, select a spiral-flute tap like this OSG 1/2"-20 UNF model to manage chip evacuation. Ensure the tap tolerance (H3 / 2B-3B) matches your thread class requirement. Use appropriate cutting fluid and reduce speed by 20-30% compared to carbon steel tapping.

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 extension 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 Extension Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768601)
OSG
OSG Extension Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768601)
OSG Extension Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769001)
OSG
OSG Extension Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769001)
OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768501)
OSG
OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768501)
Spiral-flute extension tap for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the extended reach allows access to deep or recessed areas. Thread size 1/2"-13 UNC, tolerance H3 / 2B-3B, 3 flutes, modified bottoming chamfer
OSG
Spiral-flute extension tap for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the extended reach allows access to deep or recessed areas. Thread size 1/2"-13 UNC, tolerance H3 / 2B-3B, 3 flutes, modified bottoming chamfer
This spiral-flute extension tap is designed for threading blind holes in steel and stainless steel. The 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
OSG
This spiral-flute extension tap is designed for threading blind holes in steel and stainless steel. The 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
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1767901)
OSG
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1767901)

More from OSG

View all OSG parts
Spiral-flute extension tap for threading blind holes in steel and stainless steel. Thread size 5/16"-18 UNC with H3 / 2B-3B tolerance class. Three flutes and bottoming chamfer enable threading to the bottom of blind holes while evacuating chips upward. Extended length provides access to deep or recessed areas
OSG
Spiral-flute extension tap for threading blind holes in steel and stainless steel. Thread size 5/16"-18 UNC with H3 / 2B-3B tolerance class. Three flutes and bottoming chamfer enable threading to the bottom of blind holes while evacuating chips upward. Extended length provides access to deep or recessed areas
This OSG spiral-flute extension tap is designed for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It features a 3/8"-24 UNF thread size, H3 / 2B-3B tolerance, and 3 flutes
OSG
This OSG spiral-flute extension tap is designed for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It features a 3/8"-24 UNF thread size, H3 / 2B-3B tolerance, and 3 flutes
This spiral-flute extension tap is designed for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is suitable for applications requiring precise UNF threads
OSG
This spiral-flute extension tap is designed for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is suitable for applications requiring precise UNF threads
This OSG extension tap is designed for threading #6-32 UNC holes in steel and stainless steel. Its spiral-flute design and bottoming chamfer make it suitable for through-hole or blind-hole applications where chip evacuation is critical
OSG
This OSG extension tap is designed for threading #6-32 UNC holes in steel and stainless steel. Its spiral-flute design and bottoming chamfer make it suitable for through-hole or blind-hole applications where chip evacuation is critical
Spiral-flute extension tap for threading blind holes in steel and stainless steel. Features a #8-32 UNC thread size, H3 / 2B-3B thread class, 3 flutes, and a bottoming chamfer. The spiral-flute design evacuates chips upward, enabling deep-hole tapping and threading close to the hole bottom
OSG
Spiral-flute extension tap for threading blind holes in steel and stainless steel. Features a #8-32 UNC thread size, H3 / 2B-3B thread class, 3 flutes, and a bottoming chamfer. The spiral-flute design evacuates chips upward, enabling deep-hole tapping and threading close to the hole bottom
Spiral-flute extension tap for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the extended reach allows access to deep or recessed areas. Thread size #10-32 UNF, H3 / 2B-3B tolerance, 3 flutes, modified bottoming chamfer
OSG
Spiral-flute extension tap for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the extended reach allows access to deep or recessed areas. Thread size #10-32 UNF, H3 / 2B-3B tolerance, 3 flutes, modified bottoming chamfer
Spiral-flute extension tap designed for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the bottoming chamfer allows threading close to the hole bottom. Thread size: 3/8"-24 UNF, tolerance H3 / 2B-3B, 3 flutes
OSG
Spiral-flute extension tap designed for threading blind holes in steel and stainless steel. The spiral-flute design evacuates chips upward, preventing clogging, while the bottoming chamfer allows threading close to the hole bottom. Thread size: 3/8"-24 UNF, tolerance H3 / 2B-3B, 3 flutes
Spiral-flute extension tap for threading blind holes in steel and stainless steel. Thread size 3/8"-16 UNC with H3 / 2B-3B tolerance class. 3-flute design with modified bottoming chamfer for threading close to hole bottom. Extended length provides access to deep or recessed areas
OSG
Spiral-flute extension tap for threading blind holes in steel and stainless steel. Thread size 3/8"-16 UNC with H3 / 2B-3B tolerance class. 3-flute design with modified bottoming chamfer for threading close to hole bottom. Extended length provides access to deep or recessed areas