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OSG Spiral Flute Tap: 1 3/4"-5 UNC, H11 / 2B-3B, 4 Flute - Oversized Spiral-Flute Taps for Steel & Stainless Steel
OSGOversized Spiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1 3/4"-5 UNC, H11 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (1 3/4"-5 UNC, MPN 1650508408) is an oversized spiral-flute tap for steel and stainless steel, featuring an H11 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. 3G Electric…

SKU 3G-OTH-213024

Brand
OSG
Item
Spiral Flute Tap: 1 3/4"-5 UNC, H11 / 2B-3B, 4 Flute
Category
Oversized Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1650508408
Type
H11 / 2B-3B, Modified Bottoming Chamfer
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1 3/4"-5 UNC, MPN 1650508408) is an oversized spiral-flute tap for steel and stainless steel, featuring an H11 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets this demand and sources the genuine OEM part, backed by specialist expertise across 14 industrial departments.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the OSG spiral flute tap 1 3/4"-5 UNC used for?

This OSG spiral flute tap is designed for threading steel and stainless steel. The spiral flute design helps evacuate chips upward, making it suitable for blind-hole threading. The modified bottoming chamfer allows threading close to the bottom of the hole. It is commonly used in industrial manufacturing and maintenance applications.

What are the specifications of the OSG spiral flute tap 1 3/4"-5 UNC?

This OSG tap has a thread size of 1 3/4"-5 UNC, with a H11 / 2B-3B tolerance class. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 1650508408. It is an oversized spiral-flute tap designed for threading steel and stainless steel.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute 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. We supply genuine OSG taps for industrial applications.

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, use taps with a H11 / 2B-3B tolerance class for precise fit. The modified bottoming chamfer is ideal for blind holes. Ensure the tap matches your required thread depth and machine compatibility.

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 oversized 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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