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OSG 1/4"-32 UNEF Spiral-Flute Tap - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 1/4"-32 UNEF Spiral-Flute Tap

The OSG Spiral Flute Tap (1/4"-32 UNEF) is a spiral-flute tap for steel and stainless steel, featuring a bottoming chamfer, 3 flutes, and V coated powdered metal construction. It is specified as H3 / 2B-3B (MPN…

SKU 3G-OTH-217822

Brand
OSG
Item
1/4"-32 UNEF Spiral-Flute Tap
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1650511008
Type
H3 / 2B-3B, Bottoming Chamfer, V Coated Powdered Metal
Flute
3

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (1/4"-32 UNEF) is a spiral-flute tap for steel and stainless steel, featuring a bottoming chamfer, 3 flutes, and V coated powdered metal construction. It is specified as H3 / 2B-3B (MPN 1650511008).

Frequently Asked Questions

What is the OSG spiral flute tap 1650511008 used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging. The V coating and powdered metal construction provide wear resistance for production tapping. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 1650511008 tap?

The OSG 1650511008 is a spiral flute tap with a 1/4"-32 UNEF thread size, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It features a V coating on powdered metal substrate. The manufacturer part number is 1650511008. This tap is intended for threading blind holes in steel and stainless steel.

Where to buy OSG taps in worldwide?

You can source OSG taps, including model 1650511008, through 3G Electric. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this and other OSG threading tools.

How to select the correct OSG tap for a blind hole?

For blind holes in steel or stainless steel, choose a spiral flute tap like the OSG 1650511008. The spiral flutes pull chips out of the hole, preventing breakage. Ensure the tap has a bottoming chamfer for threading close to the hole bottom. Match thread size, pitch, and tolerance class (e.g., H3 / 2B-3B) to your application requirements.

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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Cross-referenced by specification & description
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a bottoming chamfer to cut threads close to the hole bottom. Made from V-coated powdered metal with 3 flutes. Tolerance class H3 / 2B-3B
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a bottoming chamfer to cut threads close to the hole bottom. Made from V-coated powdered metal with 3 flutes. Tolerance class H3 / 2B-3B
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Spiral-flute tap for threading steel and stainless steel. Features a bottoming chamfer for through-hole or blind-hole applications requiring threads to the bottom. Constructed from V-coated powdered metal for wear resistance and efficient chip evacuation. Thread size #12-32 UNEF, H3 / 2B-3B tolerance, 3-flute design
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Spiral-flute tap for threading steel and stainless steel. Features a bottoming chamfer for through-hole or blind-hole applications requiring threads to the bottom. Constructed from V-coated powdered metal for wear resistance and efficient chip evacuation. Thread size #12-32 UNEF, H3 / 2B-3B tolerance, 3-flute design
OSG Spiral Flute Tap: 1/4"-32 UNEF, H3 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1650505708)
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OSG Spiral Flute Tap: 1/4"-32 UNEF, H3 / 2B-3B, 2 Flute, Modified Bottoming Chamfer (MPN 1650505708)
OSG Spiral Flute Tap: 3/8"-32 UNEF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1650505908)
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OSG Spiral Flute Tap: 3/8"-32 UNEF, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1650505908)

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