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OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute

The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 1650501708) is a 2-flute tap with an H3 / 2B-3B tolerance and a modified bottoming chamfer, designed for threading steel and stainless steel. 3G Electric interprets your…

SKU 3G-OTH-217808

Brand
OSG
Item
Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650501708
Type
H3 / 2B-3B, Modified Bottoming Chamfer
Flute
2
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 1650501708) is a 2-flute tap with an H3 / 2B-3B tolerance and a modified bottoming chamfer, designed for threading steel and stainless steel. 3G Electric interprets your demand for this specific OEM tool, sourcing it across our 14 industrial departments with specialist depth in cutting tools and controls.

Frequently Asked Questions

What is the OSG spiral flute tap 1/4-20 UNC used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing applications where clean, accurate threads are required.

What are the specifications of the OSG 1/4-20 UNC spiral flute tap?

This OSG tap has a 1/4-20 UNC thread size, H3 / 2B-3B tolerance, 2 flutes, and a modified bottoming chamfer. The manufacturer part number is 1650501708. It is designed for threading steel and stainless steel, with a spiral flute geometry for chip evacuation in blind holes.

Where to buy OSG taps in worldwide?

You can source OSG 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 time on this OSG spiral flute tap or other cutting tools.

How to select the right OSG tap for steel?

For steel and stainless steel, choose a spiral flute tap like this OSG model for blind holes. The H3 / 2B-3B tolerance ensures precise thread fit. Consider thread size (1/4-20 UNC), flute count (2), and chamfer type (modified bottoming). Always match the tap to material hardness and hole depth.

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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