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 Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute - Spiral-Flute Extension Taps for Steel & Stainless Steel
OSGSpiral-Flute Extension Taps for Steel & Stainless Steel

OSG Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute

SKU 3G-OTH-315324

Brand
OSG
Item
Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute
Category
Spiral-Flute Extension Taps for Steel & Stainless Steel
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

OSG
Manufacturer Part Number
1769301
View Full Spec Sheet

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

Frequently Asked Questions

What is the OSG Extension Tap 5/8"-11 UNC used for?

This OSG extension tap 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 Extension Tap MPN 1769301?

The OSG Extension Tap MPN 1769301 has a thread size of 5/8"-11 UNC, with H3 / 2B-3B tolerance. It features 4 flutes and a modified bottoming chamfer. This spiral-flute tap is designed for steel and stainless steel, providing efficient chip evacuation in blind-hole threading operations.

Where to buy the OSG Extension Tap 1769301 worldwide?

You can source the OSG Extension Tap 1769301 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this and other OSG tooling.

How to select the correct OSG extension tap for steel?

Select an OSG extension tap based on thread size, pitch, and material. For steel and stainless steel, use a spiral-flute design like this 5/8"-11 UNC tap with H3 / 2B-3B tolerance. Ensure the chamfer type matches your hole depth—modified bottoming for blind holes. Always match tap coating to material hardness for optimal tool life.

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 →

Similar products

Matched by specification & description
OSG Extension Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769001). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769001). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768501). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768501). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769101). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769101). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768701). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768701). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768801). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768801). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769201). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1769201). Key specifications — attr1315101: H3 / 2B-3B.

More from OSG

View all OSG parts →
OSG Extension Tap: #4-40 UNC, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0143701). Key specifications — attr1315101: H2 / 2B-3B.
OSG
OSG Extension Tap: #4-40 UNC, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0143701). Key specifications — attr1315101: H2 / 2B-3B.
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768101). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768101). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0144601). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0144601). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1767101). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1767101). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1767901). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1767901). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: #6-32 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1766301). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: #6-32 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1766301). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0144401). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0144401). Key specifications — attr1315101: H3 / 2B-3B.
OSG Extension Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768601). Key specifications — attr1315101: H3 / 2B-3B.
OSG
OSG Extension Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1768601). Key specifications — attr1315101: H3 / 2B-3B.