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OSG Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Spiral Point Tap (5/16"-18 UNC, MPN 1241001) is a general-purpose spiral-point tap with an H5 / 2B-3B tolerance, plug chamfer, and black oxide high-speed steel construction. It features 3 flutes and is…

SKU 3G-OTH-215768

Brand
OSG
Item
Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
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Technical Specifications

OSG
Manufacturer Part Number
1241001
Type
H5 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Point Tap (5/16"-18 UNC, MPN 1241001) is a general-purpose spiral-point tap with an H5 / 2B-3B tolerance, plug chamfer, and black oxide high-speed steel construction. It features 3 flutes and is designed for through-hole threading applications.

Frequently Asked Questions

What is the OSG Spiral Point Tap 5/16"-18 UNC used for?

This OSG spiral point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its 3-flute design and plug chamfer push chips forward, making it ideal for high-speed production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG Spiral Point Tap 1241001?

The OSG spiral point tap has a 5/16"-18 UNC thread size, H5 / 2B-3B tolerance, 3 flutes, plug chamfer, and black oxide high speed steel construction. The manufacturer part number is 1241001. It is suitable for through-hole tapping in steel, aluminum, and cast iron.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the OSG spiral point tap 1241001 or other OSG threading tools.

How to select the right OSG spiral point tap for through holes?

For through holes, choose a spiral point tap like this OSG model. Ensure the thread size (5/16"-18 UNC), chamfer type (plug), and tolerance (H5) match your application. Use cutting fluid for steel; reduce speed for harder materials. Always verify hole size before tapping.

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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