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OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer - Spiral-Point Extension Taps
OSGSpiral-Point Extension Taps

OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer

The OSG Extension Tap (#10-32 UNF, MPN 1294700) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features 2 flutes and is rated H3 / 2B-3B for thread class compatibility.

SKU 3G-OTH-313636

Brand
OSG
Item
Extension Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer
Category
Spiral-Point Extension Taps
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Technical Specifications

OSG
Manufacturer Part Number
1294700
Type
H3 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
2
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Extension Tap (#10-32 UNF, MPN 1294700) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features 2 flutes and is rated H3 / 2B-3B for thread class compatibility.

Frequently Asked Questions

What is the OSG #10-32 UNF extension tap used for?

The OSG #10-32 UNF extension tap is used for threading blind or deep holes in metal parts where standard taps cannot reach. It is common in automotive, aerospace, and general manufacturing for creating precise internal threads in hard-to-access locations.

What are the specifications of the OSG extension tap MPN 1294700?

The OSG extension tap MPN 1294700 is a #10-32 UNF size with H3 / 2B-3B thread tolerance. It has 2 flutes, a plug chamfer, and is made from high-speed steel. It is a spiral-point extension tap designed for through-hole threading in deep or obstructed areas.

Where to buy OSG extension taps worldwide?

You can source OSG extension taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG #10-32 UNF extension tap MPN 1294700.

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

To select the correct OSG extension tap, match the thread size (e.g., #10-32 UNF), tolerance class (H3 / 2B-3B), and chamfer type (plug) to your material and hole depth. For deep or blind holes, choose an extension tap with sufficient reach. Consult OSG's technical data for material-specific recommendations.

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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