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OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer - Spiral-Point Extension Taps
OSGSpiral-Point Extension Taps

OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer

The OSG Extension Tap (#10-24 UNC, MPN 1294601) is a spiral-point extension tap with a plug chamfer, black oxide high-speed steel construction, and H3 / 2B-3B tolerance. It features 2 flutes and is designed for…

SKU 3G-OTH-313638

Brand
OSG
Item
Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps
Available to Order
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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
1294601
Type
H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
2

Technical Documents

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

Product Description

The OSG Extension Tap (#10-24 UNC, MPN 1294601) is a spiral-point extension tap with a plug chamfer, black oxide high-speed steel construction, and H3 / 2B-3B tolerance. It features 2 flutes and is designed for threading applications requiring extended reach.

Frequently Asked Questions

What is the OSG #10-24 UNC extension tap used for?

The OSG #10-24 UNC extension tap is used for threading blind or through holes in metal where standard-length taps cannot reach. Its extended shank allows access to deep or recessed areas, making it ideal for maintenance, repair, and production environments requiring precise internal threads.

What are the specifications of the OSG 1294601 extension tap?

The OSG 1294601 is a #10-24 UNC spiral-point extension tap with H3 / 2B-3B tolerance, 2 flute, plug chamfer, and black oxide high-speed steel construction. It is designed for threading steel and other ferrous materials, offering chip evacuation forward through the spiral-point geometry.

Where to buy OSG extension taps worldwide?

OSG extension taps are available to order 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 on the OSG 1294601 or other OSG threading tools.

How to select the correct OSG extension tap for a job?

To select the correct OSG extension tap, match the thread size (e.g., #10-24 UNC), chamfer type (plug for general use), flute count (2 for spiral-point), and tolerance class (H3 for 2B-3B fit). Ensure the tap length reaches the hole depth. OSG's black oxide HSS coating reduces friction and extends tool life in ferrous materials.

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-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294501)
OSG
OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294501)
OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294801)
OSG
OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294801)
OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294701)
OSG
OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294701)
OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1294500)
OSG
OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1294500)
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294901)
OSG
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1294901)
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1295001)
OSG
OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1295001)

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