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OSG Spiral Point Tap: 1/4"-20 UNC, 2B+, 2 Flute, Plug Chamfer - Oversized Spiral-Point Taps
OSGOversized Spiral-Point Taps

OSG Spiral Point Tap: 1/4"-20 UNC, 2B+, 2 Flute, Plug Chamfer

The OSG Spiral Point Tap (1/4"-20 UNC, MPN 1590001) is an oversized spiral-point tap with a 2B+ tolerance, 2-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets customer…

SKU 3G-OTH-251177

Brand
OSG
Item
Spiral Point Tap: 1/4"-20 UNC, 2B+, 2 Flute, Plug Chamfer
Category
Oversized Spiral-Point Taps
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Technical Specifications

OSG
Manufacturer Part Number
1590001
Type
2B+, Plug Chamfer, Black Oxide High Speed Steel
Flute
2
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Point Tap (1/4"-20 UNC, MPN 1590001) is an oversized spiral-point tap with a 2B+ tolerance, 2-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets customer demand and delivers this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps, and controls as a trust anchor — ensuring you get the right solution, not just a catalog.

Frequently Asked Questions

What is the OSG Spiral Point Tap 1590001 used for?

The OSG Spiral Point Tap 1590001 is used for threading blind or through holes in ferrous and non-ferrous materials. Its spiral-point design pushes chips ahead, reducing chip clogging. Common applications include automotive, aerospace, and general manufacturing where precise 2B+ class threads are required.

What are the specifications of the OSG Spiral Point Tap 1590001?

The OSG Spiral Point Tap 1590001 has a 1/4\"-20 UNC thread size, 2B+ tolerance class, 2 flutes, and a plug chamfer. It is made from black oxide high-speed steel (HSS) for wear resistance and lubricity. The manufacturer part number is 1590001, and it is an oversized spiral-point tap.

Where to buy the OSG Spiral Point Tap 1590001 worldwide?

You can source the OSG Spiral Point Tap 1590001 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 supply this OSG tap to procurement teams and engineers globally.

How to select the correct OSG Spiral Point Tap for threading?

To select the correct OSG spiral point tap, match the thread size (e.g., 1/4\"-20 UNC), tolerance class (2B+ for tighter fit), and material compatibility. For blind holes, use spiral point taps to push chips forward. OSG taps are made from HSS or cobalt; choose black oxide for ferrous materials. Consult OSG's technical data for optimal speeds and feeds.

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

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