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OSG Spiral Point Tap: 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-215770

Brand
OSG
Item
Spiral Point Tap: 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute
Category
General Purpose Spiral-Point Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
2851001

Technical Documents

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

Product Description

OSG General Purpose Spiral-Point Taps.

Frequently Asked Questions

What is the OSG spiral point tap 2851001 used for?

The OSG spiral point tap 2851001 is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral point design pushes chips forward, reducing chip clogging and enabling faster production threading in industrial machining applications.

What are the specifications of the OSG 2851001 tap?

The OSG 2851001 is a 1 3/8"-6 UNC spiral point tap with H6 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is a general-purpose tap suitable for high-speed threading in machine shops and manufacturing lines.

Where to buy OSG taps like 2851001 worldwide?

3G Electric supplies OSG taps including the 2851001 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG threading tools.

How to select the correct tap for UNC threads?

Select a tap with the exact thread size and pitch, such as 1 3/8"-6 UNC, and match the tolerance class (e.g., H6 for 2B-3B fit). For through holes, a spiral point tap like OSG 2851001 is ideal. Always verify material hardness and machine capability.

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 general purpose 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 1/4"-7 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850401)
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OSG Spiral Point Tap: 1 1/4"-7 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850401)
OSG Spiral Point Tap: 1 3/8"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2851401)
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OSG Spiral Point Tap: 1 3/8"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2851401)
OSG Spiral Point Tap: 1 1/2"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2852001)
OSG
OSG Spiral Point Tap: 1 1/2"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2852001)
OSG Spiral Point Tap: 5/16"-24 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2841308)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2841308)
OSG Spiral Point Tap: 1 1/8"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850201)
OSG
OSG Spiral Point Tap: 1 1/8"-8 8UN, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850201)
OSG Spiral Point Tap: 3/8"-24 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2841908)
OSG
OSG Spiral Point Tap: 3/8"-24 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2841908)

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