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OSG Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute

SKU 3G-OTH-218702

Brand
OSG
Item
Spiral Flute Tap: 5/8"-18 UNF, H3 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1733708
Type
H3 / 2B-3B, Modified Bottoming Chamfer
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

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 modified bottoming chamfer and 4-flute design efficiently evacuate chips upward, making it ideal for high-quality internal threads in production machining and maintenance applications.

What are the specifications of the OSG 1733708 tap?

The OSG 1733708 is a 5/8-18 UNF spiral flute tap with a H3 / 2B-3B tolerance class, 4 flutes, and a modified bottoming chamfer. It is designed for threading steel and stainless steel, ensuring precise thread fit and chip evacuation in blind-hole applications.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 1733708 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this spiral flute tap or any other OSG threading tool you need sourced and delivered globally.

How to select the correct spiral flute tap for steel?

Select a spiral flute tap like this OSG 5/8-18 UNF for blind holes in steel and stainless steel. The modified bottoming chamfer allows threading close to the hole bottom, while the 4-flute design provides balanced cutting and chip lift. Match the tap tolerance (H3 / 2B-3B) to your required thread class.

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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