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

OSG Straight Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer - General Purpose Hand Taps
OSGGeneral Purpose Hand Taps

OSG Straight Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer

The OSG Straight Flute Tap (1/2"-13 UNC) is a general-purpose hand tap with a plug chamfer, 4 flutes, and TiN-coated high-speed steel construction. It is manufactured to H3 / 2B-3B tolerance specifications (MPN 1122505).

SKU 3G-OTH-221666

Brand
OSG
Item
Straight Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer
Category
General Purpose Hand 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
1122505
Type
H3 / 2B-3B, Plug Chamfer, TiN Coated High Speed Steel
Flute
4

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 Straight Flute Tap (1/2"-13 UNC) is a general-purpose hand tap with a plug chamfer, 4 flutes, and TiN-coated high-speed steel construction. It is manufactured to H3 / 2B-3B tolerance specifications (MPN 1122505).

Frequently Asked Questions

What is the OSG 1122505 straight flute tap used for?

The OSG 1122505 is a general-purpose hand tap for cutting internal threads in metal. Its 1/2"-13 UNC size, plug chamfer, and TiN coating suit it for through-hole and blind-hole threading in steel, aluminum, and alloys across machining and maintenance applications.

What are the specifications of the OSG 1122505 tap?

This OSG tap has a 1/2"-13 UNC thread, H3 / 2B-3B tolerance, 4 flutes, plug chamfer, and TiN-coated high-speed steel construction. The manufacturer part number is 1122505. It is designed for general-purpose hand tapping in ferrous and non-ferrous materials.

Where to buy the OSG 1122505 tap worldwide?

3G Electric supplies the OSG 1122505 straight flute tap 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 cutting tools.

How to select the correct tap for a 1/2"-13 UNC thread?

For a 1/2"-13 UNC thread, choose a tap with matching thread size and pitch, like the OSG 1122505. Consider chamfer type: plug for general use, taper for starting, or bottoming for blind holes. Coating (e.g., TiN) improves wear resistance in harder materials.

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 hand 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 Straight Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1120105)
OSG
OSG Straight Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1120105)
OSG Straight Flute Tap: 1/2"-20 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1122805)
OSG
OSG Straight Flute Tap: 1/2"-20 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1122805)
OSG Straight Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121005)
OSG
OSG Straight Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121005)
OSG Straight Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121305)
OSG
OSG Straight Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121305)
OSG Straight Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1120705)
OSG
OSG Straight Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1120705)
OSG Straight Flute Tap: 3/8"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121605)
OSG
OSG Straight Flute Tap: 3/8"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121605)

More from OSG

View all OSG parts
OSG Straight Flute Tap: #4-48 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1002500)
OSG
OSG Straight Flute Tap: #4-48 UNF, H1 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1002500)
OSG Straight Flute Tap: 7/8"-9 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1135505)
OSG
OSG Straight Flute Tap: 7/8"-9 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1135505)
OSG Straight Flute Tap: 5/16"-18 UNC, H2 / 2B-3B, 4 Flute, Plug Chamfer (MPN 1110708)
OSG
OSG Straight Flute Tap: 5/16"-18 UNC, H2 / 2B-3B, 4 Flute, Plug Chamfer (MPN 1110708)
OSG Straight Flute Tap: 5/8"-18 UNF, H2 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1114000)
OSG
OSG Straight Flute Tap: 5/8"-18 UNF, H2 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1114000)
OSG Straight Flute Tap: 1"-8 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1146108)
OSG
OSG Straight Flute Tap: 1"-8 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer, TiCN Coated High Speed Steel (MPN 1146108)
OSG Straight Flute Tap: #10-24 UNC, H1 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1040700)
OSG
OSG Straight Flute Tap: #10-24 UNC, H1 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1040700)
OSG Straight Flute Tap: 1"-8 UNC, H2 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1116100)
OSG
OSG Straight Flute Tap: 1"-8 UNC, H2 / 2B-3B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 1116100)
OSG Straight Flute Tap: M18x2.5 Metric, D7 / 4H-6H, 4 Flute, Plug Chamfer (MPN 1976401)
OSG
OSG Straight Flute Tap: M18x2.5 Metric, D7 / 4H-6H, 4 Flute, Plug Chamfer (MPN 1976401)