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OSG Straight Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer - General Purpose Hand Taps
OSGGeneral Purpose Hand Taps

OSG Straight Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer

The OSG Straight Flute Tap (5/16"-24 UNF) is a general-purpose hand tap with a TiN-coated high-speed steel construction, featuring a plug chamfer and H3 / 2B-3B tolerance class. This 4-flute tap (MPN 1121005) is…

SKU 3G-OTH-221829

Brand
OSG
Item
Straight Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer
Category
General Purpose Hand Taps
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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
1121005
Type
H3 / 2B-3B, Plug Chamfer, TiN Coated High Speed Steel
Flute
4

Technical Documents

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

Product Description

The OSG Straight Flute Tap (5/16"-24 UNF) is a general-purpose hand tap with a TiN-coated high-speed steel construction, featuring a plug chamfer and H3 / 2B-3B tolerance class. This 4-flute tap (MPN 1121005) is designed for threading applications requiring precise internal threads in a range of materials.

Frequently Asked Questions

What is OSG 1121005 straight flute tap used for?

The OSG 1121005 straight flute tap is a general-purpose hand tap for threading 5/16"-24 UNF holes in steel and non-ferrous materials. Its TiN coating reduces friction and extends tool life, making it suitable for maintenance, repair, and production environments.

What are the specifications of OSG 1121005 tap?

This OSG tap has a 5/16"-24 UNF thread, H3 / 2B-3B tolerance, 4 flutes, plug chamfer, and TiN-coated high-speed steel construction. It is designed for through-hole or blind-hole threading and is identified by MPN 1121005.

Where to buy OSG 1121005 tap in worldwide?

3G Electric supplies the OSG 1121005 straight flute tap to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this precision threading tool.

How to select the right tap for UNF threads?

For UNF threads like 5/16"-24, match the tap's thread size, pitch, and tolerance class (e.g., H3) to your hole requirements. Plug chamfer suits blind holes; TiN coating aids chip evacuation. Consult OSG's technical data for material-specific 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 hand 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 Straight Flute Tap: 3/8"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121605)
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OSG Straight Flute Tap: 3/8"-24 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1121605)
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OSG Straight Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1124005)
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OSG Straight Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1122205)
OSG Straight Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1120105)
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OSG Straight Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1120105)

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