We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Point Tap (5/16"-18 UNC, MPN 1231000) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is specified as H3 / 2B-3B for thread class tolerance.

SKU 3G-OTH-214843

Brand
OSG
Item
Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1231000
Type
H3 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
3

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OSG Spiral Point Tap (5/16"-18 UNC, MPN 1231000) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is specified as H3 / 2B-3B for thread class tolerance.

Frequently Asked Questions

What is the OSG spiral point tap 5/16-18 UNC used for?

The OSG spiral point tap is used for threading blind or through holes in ferrous and non-ferrous materials. Its spiral point design pushes chips forward, reducing chip clogging and tap breakage. Common applications include automotive, aerospace, and general manufacturing where precise UNC threads are required.

What are the specifications of the OSG tap MPN 1231000?

The OSG tap MPN 1231000 is a 5/16-18 UNC spiral point tap with H3 / 2B-3B thread tolerance. It has 3 flutes, a plug chamfer, and is made from high-speed steel. This general-purpose tap is designed for threading through holes and provides good chip evacuation in production environments.

Where to buy OSG taps in worldwide?

You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG spiral point tap MPN 1231000.

How to select the correct OSG spiral point tap for a job?

Select the OSG spiral point tap based on thread size (e.g., 5/16-18 UNC), material type, and hole configuration. For through holes, spiral point taps are ideal. Ensure the tap's tolerance class (H3 / 2B-3B) matches your required thread fit. Consult OSG's technical data for recommended 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 general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Point Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1231600)
OSG
OSG Spiral Point Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1231600)
OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1231001)
OSG
OSG Spiral Point Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1231001)
OSG Spiral Point Tap: 3/4"-16 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1233800)
OSG
OSG Spiral Point Tap: 3/4"-16 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1233800)
OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1231800)
OSG
OSG Spiral Point Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1231800)
OSG Spiral Point Tap: 5/16"-24 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1231201)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1231201)
OSG Spiral Point Tap: 5/8"-18 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1233400)
OSG
OSG Spiral Point Tap: 5/8"-18 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1233400)

More from OSG

View all OSG parts
OSG Spiral Point Tap: 5/16"-18 UNC, 3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 2880800)
OSG
OSG Spiral Point Tap: 5/16"-18 UNC, 3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 2880800)
OSG Spiral Point Tap: #8-32 UNC, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812901)
OSG
OSG Spiral Point Tap: #8-32 UNC, H4 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2812901)
OSG Spiral Point Tap: #6-40 UNF, H2 / 2B-3B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 1207700)
OSG
OSG Spiral Point Tap: #6-40 UNF, H2 / 2B-3B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 1207700)
OSG Spiral Point Tap: #2-64 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1200800)
OSG
OSG Spiral Point Tap: #2-64 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1200800)
OSG Spiral Point Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 2891400)
OSG
OSG Spiral Point Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 2891400)
OSG Spiral Point Tap: #10-32 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2808801)
OSG
OSG Spiral Point Tap: #10-32 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2808801)
OSG Spiral Point Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Bottoming Chamfer (MPN 1213901)
OSG
OSG Spiral Point Tap: #10-32 UNF, H3 / 2B-3B, 2 Flute, Bottoming Chamfer (MPN 1213901)
OSG Spiral Point Tap: 3/8"-24 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1236808)
OSG
OSG Spiral Point Tap: 3/8"-24 UNF, H4 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1236808)