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OSG Spiral Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

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

The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 2985601) is a general-purpose tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. It features 3 flutes for efficient chip…

SKU 3G-OTH-229879

Brand
OSG
Item
Spiral Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer
Category
General Purpose Spiral-Flute Taps
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
2985601
Type
2B, Bottoming Chamfer, Black Oxide High Speed Steel
Flute
3

Technical Documents

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

Product Description

The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 2985601) is a general-purpose tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. It features 3 flutes for efficient chip evacuation in through-hole threading applications.

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 2985601 used for?

The OSG spiral flute tap 2985601 is used for threading blind holes in materials like steel and aluminum. Its spiral flute design evacuates chips upward, preventing clogging. The bottoming chamfer allows threading close to the hole bottom. It is common in automotive and general manufacturing applications.

What are the specifications of the OSG 2985601 tap?

The OSG 2985601 is a 1/4"-20 UNC spiral flute tap with a 2B thread class, 3 flutes, and a bottoming chamfer. It is made from black oxide high speed steel. This general purpose tap is designed for blind hole threading and is manufactured by OSG.

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 the OSG 2985601 spiral flute tap.

How to select the right OSG tap for blind holes?

For blind holes, choose a spiral flute tap like the OSG 2985601 to evacuate chips upward. Ensure the tap size matches your thread specification (e.g., 1/4"-20 UNC) and chamfer type (bottoming for threads near hole bottom). Use proper cutting fluid and follow OSG's speed/feed recommendations for best results.

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 general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Flute Tap: 1/2"-20 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986301)
OSG
OSG Spiral Flute Tap: 1/2"-20 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986301)
This spiral-flute tap is designed for threading blind holes in ferrous materials. The spiral flute geometry lifts chips upward, reducing clogging and producing clean threads. It features a bottoming chamfer for threading to the bottom of the hole. Made from black oxide high-speed steel for wear resistance and improved lubricity
OSG
This spiral-flute tap is designed for threading blind holes in ferrous materials. The spiral flute geometry lifts chips upward, reducing clogging and producing clean threads. It features a bottoming chamfer for threading to the bottom of the hole. Made from black oxide high-speed steel for wear resistance and improved lubricity
OSG Spiral Flute Tap: 3/8"-24 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986101)
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OSG Spiral Flute Tap: 3/8"-24 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986101)
OSG Spiral Flute Tap: 3/8"-16 UNC, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986001)
OSG
OSG Spiral Flute Tap: 3/8"-16 UNC, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2986001)
OSG Spiral Flute Tap: 1/4"-28 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985701)
OSG
OSG Spiral Flute Tap: 1/4"-28 UNF, 2B, 3 Flute, Bottoming Chamfer, Black Oxide High Speed Steel (MPN 2985701)
OSG Spiral Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 2985600)
OSG
OSG Spiral Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 2985600)

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