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OSG Spiral Flute Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (5/8"-18 UNF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 3-flute design, and modified bottoming chamfer (MPN 1645058185). 3G Electric interprets…

SKU 3G-OTH-218684

Brand
OSG
Item
Spiral Flute Tap: 5/8"-18 UNF, H5 / 2B-3B, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1645058185
Type
H5 / 2B-3B, Modified Bottoming Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (5/8"-18 UNF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 3-flute design, and modified bottoming chamfer (MPN 1645058185). 3G Electric interprets this demand and sources the genuine OSG tap, backed by specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is the OSG spiral flute tap 5/8"-18 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its 3-flute design and modified bottoming chamfer efficiently evacuate chips upward, making it ideal for CNC and manual tapping applications where chip clearance is critical.

What are the specifications of the OSG spiral flute tap 5/8"-18 UNF?

The OSG tap has a 5/8"-18 UNF thread size, H5 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 1645058185. It is designed for threading blind holes in steel and stainless steel materials.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute taps worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this OSG tap.

How to select the correct OSG spiral flute tap for steel?

Select an OSG spiral flute tap based on thread size, pitch, and material. For steel and stainless steel blind holes, use a tap with a modified bottoming chamfer and H5 tolerance for precise 2B-3B class threads. Ensure the tap matches your hole depth and machine type.

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-flute 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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