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OSG Oversized Spiral-Point Tap: 3/8"-24 UNF, 2B+, Plug Chamfer, Black Oxide HSS - Oversized Spiral-Point Taps
OSGOversized Spiral-Point Taps

OSG Oversized Spiral-Point Tap: 3/8"-24 UNF, 2B+, Plug Chamfer, Black Oxide HSS

The OSG Spiral Point Tap (3/8"-24 UNF, MPN 1591801) is an oversized spiral-point tap with a 2B+ tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets customer…

SKU 3G-OTH-251201

Brand
OSG
Item
Oversized Spiral-Point Tap: 3/8"-24 UNF, 2B+, Plug Chamfer, Black Oxide HSS
Category
Oversized Spiral-Point Taps
Available to Order
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Technical specs
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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
1591801
Type
2B+, Plug Chamfer, Black Oxide High Speed Steel
Flute
3

Technical Documents

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

Product Description

The OSG Spiral Point Tap (3/8"-24 UNF, MPN 1591801) is an oversized spiral-point tap with a 2B+ tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments — and far more — with specialist depth in combustion, pumps, and controls as an authorised distributor for brands including OSG, Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.

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 Spiral Point Tap 1591801 used for?

The OSG Spiral Point Tap 1591801 is used for threading through-holes in metal, particularly in production environments. Its spiral-point design pushes chips forward, reducing clogging. The 3/8"-24 UNF size and 2B+ tolerance suit precision threading in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG Spiral Point Tap 1591801?

This OSG tap has a 3/8"-24 UNF thread size, 2B+ class of fit, 3 flutes, plug chamfer, and black oxide high-speed steel construction. The MPN is 1591801. It is an oversized spiral-point tap designed for through-hole threading in ferrous materials.

Where to buy the OSG Spiral Point Tap 1591801 worldwide?

You can source the OSG Spiral Point Tap 1591801 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 this precision threading tool.

How to select the correct OSG Spiral Point Tap for a job?

Select the OSG Spiral Point Tap based on thread size (e.g., 3/8"-24 UNF), material (black oxide HSS for steel), and tolerance class (2B+ for tighter fit). For through-holes, spiral-point taps are ideal. Always match the tap to the hole type and material hardness for optimal thread quality.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: 1/2"-20 UNF, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1592601)
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OSG Spiral Point Tap: 1/2"-20 UNF, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1592601)
OSG Spiral Point Tap: 3/8"-24 UNF, 2B+, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1591808)
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OSG Spiral Point Tap: 3/8"-24 UNF, 2B+, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1591808)
OSG Spiral Point Tap: 7/16"-14 UNC, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1594001)
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OSG Spiral Point Tap: 7/16"-14 UNC, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1594001)
Oversized spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 2B+ tolerance class, plug chamfer, and black oxide high-speed steel construction. The 2-flute spiral-point design pushes chips ahead to reduce clogging. Suitable for general manufacturing applications requiring precise threads
OSG
Oversized spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 2B+ tolerance class, plug chamfer, and black oxide high-speed steel construction. The 2-flute spiral-point design pushes chips ahead to reduce clogging. Suitable for general manufacturing applications requiring precise threads
OSG Spiral Point Tap: 3/8"-16 UNC, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1591601)
OSG
OSG Spiral Point Tap: 3/8"-16 UNC, 2B+, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1591601)
OSG Spiral Point Tap: 1/4"-28 UNF, 2B+, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1590201)
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OSG Spiral Point Tap: 1/4"-28 UNF, 2B+, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1590201)

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This OSG oversized spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a 1/2"-13 UNC thread size, 2B+ tolerance class, 3 flutes, and a plug chamfer. Constructed from high-speed steel, the spiral-point design pushes chips ahead to reduce clogging and breakage. Common applications include automotive, aerospace, and general manufacturing where precise UNC threads are required
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