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OSG Spiral Point Tap: #4-40 UNC, H5 / 2B, 2 Flute, Plug Chamfer - Spiral-Point Taps for Steel & Stainless Steel
OSGSpiral-Point Taps for Steel & Stainless Steel

OSG Spiral Point Tap: #4-40 UNC, H5 / 2B, 2 Flute, Plug Chamfer

The OSG Spiral Point Tap (#4-40 UNC, MPN 1734908) is a spiral-point tap for steel and stainless steel, featuring an H5 / 2B tolerance, plug chamfer, and V coated vanadium high-speed steel construction with 2 flutes…

SKU 3G-OTH-224402

Brand
OSG
Item
Spiral Point Tap: #4-40 UNC, H5 / 2B, 2 Flute, Plug Chamfer
Category
Spiral-Point Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1734908
Type
H5 / 2B, Plug Chamfer, V Coated Vanadium High Speed Steel
Flute
2
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Point Tap (#4-40 UNC, MPN 1734908) is a spiral-point tap for steel and stainless steel, featuring an H5 / 2B tolerance, plug chamfer, and V coated vanadium high-speed steel construction with 2 flutes. 3G Electric interprets this demand and sources the genuine OEM product, backed by specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is the OSG spiral point tap #4-40 UNC used for?

The OSG spiral point tap #4-40 UNC is designed for threading blind or through holes in steel and stainless steel. Its spiral point pushes chips ahead, reducing clogging. It is ideal for production tapping in automotive, aerospace, and general manufacturing where clean, accurate threads are required.

What are the specifications of the OSG spiral point tap #4-40 UNC?

The OSG spiral point tap has a #4-40 UNC thread size, H5 tolerance for 2B class fit, 2 flutes, and a plug chamfer. It is made from vanadium high-speed steel with a V coating for wear resistance. The manufacturer part number is 1734908.

Where to buy OSG spiral point taps in worldwide?

You can source OSG spiral point taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the OSG 1734908 tap.

How to select the right OSG tap for steel?

For steel, choose a tap with a coating like the V coating on this OSG spiral point tap, which reduces friction and extends tool life. Ensure the thread size (e.g., #4-40 UNC) matches your application. Use a plug chamfer for through holes and verify the H5 tolerance for a 2B 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 spiral-point taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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