We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

OSG Spiral Flute Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute

The OSG Spiral Flute Tap (1/2"-20 UNF) is a general-purpose spiral-flute tap with a modified bottoming chamfer, featuring 3 flutes and an H2 / 2B-3B tolerance class (MPN 2927608).

SKU 3G-OTH-230824

Brand
OSG
Item
Spiral Flute Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute
Category
General Purpose Spiral-Flute Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
2927608
Type
H2 / 2B-3B, Modified Bottoming Chamfer
Flute
3

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OSG Spiral Flute Tap (1/2"-20 UNF) is a general-purpose spiral-flute tap with a modified bottoming chamfer, featuring 3 flutes and an H2 / 2B-3B tolerance class (MPN 2927608).

Frequently Asked Questions

What is an OSG spiral flute tap used for?

An OSG spiral flute tap is used for threading blind holes in materials like steel and aluminum. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This 1/2"-20 UNF tap with modified bottoming chamfer is ideal for applications requiring threads close to the hole bottom.

What are the specifications of the OSG 2927608 tap?

The OSG 2927608 is a 1/2"-20 UNF spiral flute tap with 3 flutes, a modified bottoming chamfer, and a thread tolerance of H2 / 2B-3B. It is designed for general-purpose threading in blind holes, providing chip evacuation and precise thread depth control.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the 2927608 spiral flute tap and deliver to your facility. Contact us for pricing and lead time on this item.

How to select the right OSG tap for blind holes?

For blind holes, choose a spiral flute tap like this OSG 1/2"-20 UNF model to evacuate chips upward. Ensure the chamfer type (modified bottoming) matches your thread depth requirement. Verify thread tolerance (H2 / 2B-3B) aligns with your material and application for proper fit.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Spiral Flute Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2927601)
OSG
OSG Spiral Flute Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2927601)
OSG Spiral Flute Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2927600)
OSG
OSG Spiral Flute Tap: 1/2"-20 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2927600)
OSG Spiral Flute Tap: 1/4"-20 UNC, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2928000)
OSG
OSG Spiral Flute Tap: 1/4"-20 UNC, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2928000)
OSG Spiral Flute Tap: 3/8"-24 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2926801)
OSG
OSG Spiral Flute Tap: 3/8"-24 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2926801)
OSG Spiral Flute Tap: 3/8"-24 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2926800)
OSG
OSG Spiral Flute Tap: 3/8"-24 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2926800)
OSG Spiral Flute Tap: 5/16"-24 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2926401)
OSG
OSG Spiral Flute Tap: 5/16"-24 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2926401)

More from OSG

View all OSG parts
OSG Spiral Flute Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 1432900)
OSG
OSG Spiral Flute Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 1432900)
OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430405)
OSG
OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, TiN Coated High Speed Steel (MPN 1430405)
OSG Spiral Flute Tap: #10-32 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2908800)
OSG
OSG Spiral Flute Tap: #10-32 UNF, H2 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2908800)
OSG Spiral Flute Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 1431108)
OSG
OSG Spiral Flute Tap: 3/8"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 1431108)
OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 1431308)
OSG
OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 1431308)
OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 1432108)
OSG
OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 1432108)
OSG Spiral Flute Tap: #12-24 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2923608)
OSG
OSG Spiral Flute Tap: #12-24 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2923608)
OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2930000)
OSG
OSG Spiral Flute Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 2930000)