Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
OSG Spiral Point Tap: 5/16"-24 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 5/16"-24 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer

The OSG Spiral Point Tap (5/16"-24 UNF) is a general-purpose spiral-point tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer, 2 flutes, and H1 / 2B-3B thread class. 3G Electric interprets…

SKU 3G-OTH-215251

Brand
OSG
Item
Spiral Point Tap: 5/16"-24 UNF, H1 / 2B-3B, 2 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

OSG
Manufacturer Part Number
1221208
Type
H1 / 2B-3B, Plug Chamfer, TiCN Coated High Speed Steel
Flute
2
View Full Spec Sheet

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"-24 UNF) is a general-purpose spiral-point tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer, 2 flutes, and H1 / 2B-3B thread class. 3G Electric interprets your demand for this OSG tap (MPN 1221208) and delivers it across 14 industrial departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the OSG spiral point tap 5/16-24 UNF used for?

This OSG spiral point tap is designed for through-hole threading in steel and other materials. Its 2-flute design and TiCN coating reduce friction and improve chip evacuation, making it suitable for high-speed production environments where clean, accurate threads are required.

What are the specifications of the OSG 1221208 tap?

The OSG 1221208 is a 5/16-24 UNF spiral point tap with a plug chamfer, 2 flutes, and TiCN coated high speed steel. It is rated H1 / 2B-3B for thread class, ensuring precise fit for general purpose threading in steel and alloys.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 1221208 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this or any other OSG threading tool you need sourced and delivered globally.

How to select the right spiral point tap for UNF threads?

For UNF threads like 5/16-24, choose a spiral point tap with a plug chamfer for through holes. Match the thread class (e.g., 2B-3B) to your application tolerance. TiCN coating improves tool life in abrasive materials. Always verify the tap's H limit matches your desired fit.

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 →

Similar products

Matched by specification & description
OSG Spiral Point Tap: 1/2"-20 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1222608). Key specifications — attr1299616: H1 / 2B-3B.
OSG
OSG Spiral Point Tap: 1/2"-20 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1222608). Key specifications — attr1299616: H1 / 2B-3B.
OSG Spiral Point Tap: 5/16"-24 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1226408). Key specifications — attr1299616: H2 / 2B-3B.
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1226408). Key specifications — attr1299616: H2 / 2B-3B.
OSG Spiral Point Tap: 7/16"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1227208). Key specifications — attr1299616: H2 / 2B-3B.
OSG
OSG Spiral Point Tap: 7/16"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1227208). Key specifications — attr1299616: H2 / 2B-3B.
OSG Spiral Point Tap: 3/8"-24 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1221808). Key specifications — attr1299616: H1 / 2B-3B.
OSG
OSG Spiral Point Tap: 3/8"-24 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1221808). Key specifications — attr1299616: H1 / 2B-3B.
OSG Spiral Point Tap: 5/16"-24 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1226208). Key specifications — attr1299616: H2 / 2B-3B.
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1226208). Key specifications — attr1299616: H2 / 2B-3B.
OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1227608). Key specifications — attr1299616: H2 / 2B-3B.
OSG
OSG Spiral Point Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1227608). Key specifications — attr1299616: H2 / 2B-3B.

More from OSG

View all OSG parts →
OSG Spiral Point Tap: #8-32 UNC, 3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2880305). Key specifications — attr1299616: 3B.
OSG
OSG Spiral Point Tap: #8-32 UNC, 3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2880305). Key specifications — attr1299616: 3B.
OSG Spiral Point Tap: #10-32 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1208808). Key specifications — attr1299616: H2 / 2B-3B.
OSG
OSG Spiral Point Tap: #10-32 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1208808). Key specifications — attr1299616: H2 / 2B-3B.
OSG Spiral Point Tap: #0-80 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1210001). Key specifications — attr1299616: H3 / 2B-3B.
OSG
OSG Spiral Point Tap: #0-80 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1210001). Key specifications — attr1299616: H3 / 2B-3B.
OSG Spiral Point Tap: #3-48 UNC, 2B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2884505)
OSG
OSG Spiral Point Tap: #3-48 UNC, 2B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 2884505)
OSG Spiral Point Tap: #8-32 UNC, 3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 2880301). Key specifications — attr1299616: 3B.
OSG
OSG Spiral Point Tap: #8-32 UNC, 3B, 2 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 2880301). Key specifications — attr1299616: 3B.
OSG Spiral Point Tap: #3-48 UNC, H5 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 2002108)
OSG
OSG Spiral Point Tap: #3-48 UNC, H5 / 2B-3B, 2 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 2002108)
OSG Spiral Point Tap: #10-24 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1208405). Key specifications — attr1299616: H2 / 2B-3B.
OSG
OSG Spiral Point Tap: #10-24 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1208405). Key specifications — attr1299616: H2 / 2B-3B.
OSG Spiral Point Tap: #6-40 UNF, H5 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 2004200)
OSG
OSG Spiral Point Tap: #6-40 UNF, H5 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 2004200)