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

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

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-214254

Brand
OSG
Item
Spiral Point Tap: 1 3/8"-8 8UN, 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
2851401

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 2851401 used for?

The OSG spiral point tap 2851401 is designed for through-hole threading in industrial applications. Its 4-flute, plug chamfer design pushes chips forward, making it ideal for high-speed production tapping in steel, stainless steel, and cast iron across machining, automotive, and general manufacturing.

What are the specifications of the OSG 2851401 tap?

This OSG spiral point tap has a thread size of 1 3/8"-8 8UN, with a tolerance class of H6 / 2B-3B. It features 4 flutes and a plug chamfer, suitable for through-hole threading. The manufacturer part number is 2851401, and it is a general-purpose spiral-point tap.

Where to buy OSG taps like 2851401 worldwide?

3G Electric supplies OSG taps including model 2851401 to customers worldwide. As a global industrial solutions provider, 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 OSG spiral point tap for my application?

Select an OSG spiral point tap based on thread size, tolerance (e.g., H6 / 2B-3B), and material. For through holes, spiral point taps push chips forward. Match the tap's chamfer type (plug, bottoming, or taper) to hole depth. Consult OSG's technical data for speed and feed 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 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 1/8"-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: 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: 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2851001)
OSG
OSG Spiral Point Tap: 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2851001)
OSG Spiral Point Tap: 1 1/4"-7 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850401)
OSG
OSG Spiral Point Tap: 1 1/4"-7 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer (MPN 2850401)
OSG Spiral Point Tap: 5/16"-24 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2836201)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2836201)
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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