Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

OSG 2851001 Spiral Point Tap, 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer - General Purpose Spiral-Point Taps
OSGGeneral Purpose Spiral-Point Taps

OSG 2851001 Spiral Point Tap, 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer

OSG General Purpose Spiral-Point Taps.

SKU 3G-OTH-215770

Brand
OSG
Item
2851001 Spiral Point Tap, 1 3/8"-6 UNC, H6 / 2B-3B, 4 Flute, Plug Chamfer
Category
General Purpose Spiral-Point 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 — 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
2851001

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

OSG General Purpose Spiral-Point Taps.

Frequently Asked Questions

What is the OSG spiral point tap 2851001 used for?

The OSG spiral point tap 2851001 is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral point design pushes chips forward, reducing chip clogging and enabling faster production threading in industrial machining applications.

What are the specifications of the OSG 2851001 tap?

The OSG 2851001 is a 1 3/8"-6 UNC spiral point tap with H6 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is a general-purpose tap suitable for high-speed threading in machine shops and manufacturing lines.

Where to buy OSG taps like 2851001 worldwide?

3G Electric supplies OSG taps including the 2851001 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG threading tools.

How to select the correct tap for UNC threads?

Select a tap with the exact thread size and pitch, such as 1 3/8"-6 UNC, and match the tolerance class (e.g., H6 for 2B-3B fit). For through holes, a spiral point tap like OSG 2851001 is ideal. Always verify material hardness and machine capability.

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-point 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
Spiral-point tap for through-hole threading in steel, cast iron, and non-ferrous materials. Features 1 1/4"-7 UNC thread, H6 / 2B-3B tolerance, 4 flutes, and plug chamfer. Suitable for general-purpose tapping in manufacturing and maintenance operations
OSG
Spiral-point tap for through-hole threading in steel, cast iron, and non-ferrous materials. Features 1 1/4"-7 UNC thread, H6 / 2B-3B tolerance, 4 flutes, and plug chamfer. Suitable for general-purpose tapping in manufacturing and maintenance operations
General purpose spiral-point tap for through-hole threading. Features a plug chamfer and 4-flute design that pushes chips forward. Thread size 1 3/8"-8 8UN with H6 / 2B-3B tolerance. Suitable for high-speed production tapping in steel, stainless steel, and cast iron
OSG
General purpose spiral-point tap for through-hole threading. Features a plug chamfer and 4-flute design that pushes chips forward. Thread size 1 3/8"-8 8UN with H6 / 2B-3B tolerance. Suitable for high-speed production tapping in steel, stainless steel, and cast iron
General purpose spiral-point tap for through-hole threading. Features a 4-flute design with plug chamfer that pushes chips forward, suitable for high-production tapping in steel, stainless steel, and cast iron. Tolerance H6 / 2B-3B
OSG
General purpose spiral-point tap for through-hole threading. Features a 4-flute design with plug chamfer that pushes chips forward, suitable for high-production tapping in steel, stainless steel, and cast iron. Tolerance H6 / 2B-3B
OSG Spiral Point Tap: 5/16"-24 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2841308)
OSG
OSG Spiral Point Tap: 5/16"-24 UNF, H6 / 2B-3B, 3 Flute, Plug Chamfer (MPN 2841308)
General purpose spiral-point tap with a thread size of 1 1/8"-8 8UN and tolerance class H6 / 2B-3B. Features 4 flutes and a plug chamfer. The spiral-point design pushes chips forward, making it suitable for threading blind or through holes in production environments
OSG
General purpose spiral-point tap with a thread size of 1 1/8"-8 8UN and tolerance class H6 / 2B-3B. Features 4 flutes and a plug chamfer. The spiral-point design pushes chips forward, making it suitable for threading blind or through holes in production environments
Spiral-point tap designed for through-hole threading in ferrous and non-ferrous materials. Features a 3/8"-24 UNF thread size, H6 / 2B-3B tolerance, 3 flutes, and plug chamfer. The spiral point pushes chips ahead to reduce clogging and breakage during threading operations
OSG
Spiral-point tap designed for through-hole threading in ferrous and non-ferrous materials. Features a 3/8"-24 UNF thread size, H6 / 2B-3B tolerance, 3 flutes, and plug chamfer. The spiral point pushes chips ahead to reduce clogging and breakage during threading operations

More from OSG

View all OSG parts
General purpose spiral-point tap for through-hole threading. #6-40 UNF thread, 2B class fit, plug chamfer, 2 flute design. Made from TiN coated high speed steel for reduced friction and extended tool life. Suitable for steel and non-ferrous materials
OSG
General purpose spiral-point tap for through-hole threading. #6-40 UNF thread, 2B class fit, plug chamfer, 2 flute design. Made from TiN coated high speed steel for reduced friction and extended tool life. Suitable for steel and non-ferrous materials
OSG Spiral Point Tap: M7x1 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 2891101)
OSG
OSG Spiral Point Tap: M7x1 Metric, D5 / 4H-6H, 3 Flute, Plug Chamfer (MPN 2891101)
OSG Spiral Point Tap: #2-56 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1200600)
OSG
OSG Spiral Point Tap: #2-56 UNC, H1 / 2B-3B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 1200600)
This spiral-point tap is designed for through-hole threading in production environments. It features a plug chamfer and H2 / 2B-3B tolerance for consistent thread fit in steel and non-ferrous materials. Constructed from high-speed steel with 2 flutes, it is suitable for general-purpose threading applications
OSG
This spiral-point tap is designed for through-hole threading in production environments. It features a plug chamfer and H2 / 2B-3B tolerance for consistent thread fit in steel and non-ferrous materials. Constructed from high-speed steel with 2 flutes, it is suitable for general-purpose threading applications
This OSG spiral-point tap is designed for cutting internal metric threads in through-hole applications. The spiral point geometry pushes chips forward, making it suitable for production tapping in a variety of materials. It features M8x1.25 thread, D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer
OSG
This OSG spiral-point tap is designed for cutting internal metric threads in through-hole applications. The spiral point geometry pushes chips forward, making it suitable for production tapping in a variety of materials. It features M8x1.25 thread, D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer
General purpose spiral-point tap for through-hole threading. Made of black oxide high speed steel with a plug chamfer and 2 flutes. Thread tolerance H2 / 2B-3B. Suitable for tapping #0-80 UNF threads in steel, aluminum, and other common materials in production machining
OSG
General purpose spiral-point tap for through-hole threading. Made of black oxide high speed steel with a plug chamfer and 2 flutes. Thread tolerance H2 / 2B-3B. Suitable for tapping #0-80 UNF threads in steel, aluminum, and other common materials in production machining
General purpose spiral-point tap for through-hole threading in ferrous materials. Features a 5/16"-24 UNF thread size, 2B class of fit, plug chamfer, and TiN-coated high-speed steel construction with 3 flutes for efficient chip evacuation
OSG
General purpose spiral-point tap for through-hole threading in ferrous materials. Features a 5/16"-24 UNF thread size, 2B class of fit, plug chamfer, and TiN-coated high-speed steel construction with 3 flutes for efficient chip evacuation
OSG Spiral Point Tap: #5-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2807001)
OSG
OSG Spiral Point Tap: #5-40 UNC, H2 / 2B-3B, 2 Flute, Plug Chamfer (MPN 2807001)