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

OSG Spiral Flute Tap: M18x2.5 Metric, D7 / 4H-6H, 4 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: M18x2.5 Metric, D7 / 4H-6H, 4 Flute

The OSG Spiral Flute Tap (M18x2.5 Metric, MPN 2993201) is a general-purpose spiral-flute tap with a D7 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets customer demand and…

SKU 3G-OTH-231116

Brand
OSG
Item
Spiral Flute Tap: M18x2.5 Metric, D7 / 4H-6H, 4 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 — 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
2993201
Type
D7 / 4H-6H, Modified Bottoming Chamfer
Flute
4

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 (M18x2.5 Metric, MPN 2993201) is a general-purpose spiral-flute tap with a D7 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets customer demand and delivers this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the OSG spiral flute tap M18x2.5 used for?

This OSG spiral flute tap is designed for threading blind holes in ferrous and non-ferrous materials. Its 4-flute design and modified bottoming chamfer efficiently evacuate chips upward, making it ideal for automotive, aerospace, and general machining applications where thread depth and chip control are critical.

What are the specifications of the OSG tap MPN 2993201?

The OSG tap MPN 2993201 is a M18x2.5 metric spiral flute tap with a D7 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. It is designed for general purpose threading and is suitable for blind hole applications requiring precise thread fit.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the M18x2.5 spiral flute tap to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG tooling.

How to select the right OSG tap for blind holes?

For blind holes, choose a spiral flute tap like this OSG M18x2.5 with a modified bottoming chamfer. The spiral design pushes chips out of the hole, preventing clogging. Ensure the tap's tolerance class (D7 / 4H-6H) matches your thread fit requirements and that the material being tapped is compatible with the tap's coating.

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
General purpose spiral-flute tap for threading blind holes. The spiral flute design evacuates chips upward, preventing clogging in deep holes. Suitable for ferrous and non-ferrous materials where thread accuracy (4H-6H tolerance) is required. Features a modified bottoming chamfer and 4 flutes
OSG
General purpose spiral-flute tap for threading blind holes. The spiral flute design evacuates chips upward, preventing clogging in deep holes. Suitable for ferrous and non-ferrous materials where thread accuracy (4H-6H tolerance) is required. Features a modified bottoming chamfer and 4 flutes
General purpose spiral-flute tap for threading blind holes. M10x1 metric thread, D5 / 4H-6H tolerance class, 3 flutes, modified bottoming chamfer. Designed for chip evacuation in steel and cast iron
OSG
General purpose spiral-flute tap for threading blind holes. M10x1 metric thread, D5 / 4H-6H tolerance class, 3 flutes, modified bottoming chamfer. Designed for chip evacuation in steel and cast iron
Metric spiral-flute tap with M14x2 thread, D7 / 4H-6H tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes in ferrous and non-ferrous materials, with spiral flutes that evacuate chips upward to prevent clogging. Suitable for general-purpose tapping applications
OSG
Metric spiral-flute tap with M14x2 thread, D7 / 4H-6H tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes in ferrous and non-ferrous materials, with spiral flutes that evacuate chips upward to prevent clogging. Suitable for general-purpose tapping applications
OSG Spiral Flute Tap: M7x1 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991101)
OSG
OSG Spiral Flute Tap: M7x1 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991101)
OSG spiral-flute tap with M8x1 metric thread, D5 / 4H-6H tolerance class, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes, the spiral flute geometry evacuates chips upward to prevent clogging. Suitable for general-purpose tapping in ferrous and non-ferrous materials
OSG
OSG spiral-flute tap with M8x1 metric thread, D5 / 4H-6H tolerance class, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes, the spiral flute geometry evacuates chips upward to prevent clogging. Suitable for general-purpose tapping in ferrous and non-ferrous materials
OSG Spiral Flute Tap: M10x1 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991608)
OSG
OSG Spiral Flute Tap: M10x1 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991608)

More from OSG

View all OSG parts
OSG Spiral Flute Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991400)
OSG
OSG Spiral Flute Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991400)
OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1430700)
OSG
OSG Spiral Flute Tap: 5/16"-24 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1430700)
This spiral-flute tap is designed for threading blind holes in a range of materials. The spiral flute geometry evacuates chips upward, reducing clogging, while the modified bottoming chamfer enables threading close to the hole bottom. It features a H3 ground thread limit for 2B-3B class threads and is suited for general-purpose machining applications
OSG
This spiral-flute tap is designed for threading blind holes in a range of materials. The spiral flute geometry evacuates chips upward, reducing clogging, while the modified bottoming chamfer enables threading close to the hole bottom. It features a H3 ground thread limit for 2B-3B class threads and is suited for general-purpose machining applications
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features 3 flutes and a modified bottoming chamfer for threading close to the hole bottom. Thread size 7/16"-14 UNC, tolerance H3 / 2B-3B. Manufacturer part number 2932008
OSG
General purpose spiral-flute tap for threading blind holes in ferrous and non-ferrous materials. Features 3 flutes and a modified bottoming chamfer for threading close to the hole bottom. Thread size 7/16"-14 UNC, tolerance H3 / 2B-3B. Manufacturer part number 2932008
General purpose spiral-flute tap for threading blind holes. The spiral flute design evacuates chips upward, preventing clogging. Suitable for tapping in steel and aluminum. Tolerance H7 / 2B-3B, modified bottoming chamfer, 3 flutes
OSG
General purpose spiral-flute tap for threading blind holes. The spiral flute design evacuates chips upward, preventing clogging. Suitable for tapping in steel and aluminum. Tolerance H7 / 2B-3B, modified bottoming chamfer, 3 flutes
OSG Spiral Flute Tap: M7x1 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991100)
OSG
OSG Spiral Flute Tap: M7x1 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991100)
High-speed steel spiral-flute tap for #6-40 UNF threads. Features a 2B thread class, bottoming chamfer, and 2-flute design. Spiral flutes evacuate chips upward, making it suitable for threading blind holes in materials such as steel and aluminum
OSG
High-speed steel spiral-flute tap for #6-40 UNF threads. Features a 2B thread class, bottoming chamfer, and 2-flute design. Spiral flutes evacuate chips upward, making it suitable for threading blind holes in materials such as steel and aluminum
General purpose spiral-flute tap for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward to prevent clogging. Thread size 1/4"-20 UNC, H5 tolerance class for 2B-3B fit, 3 flutes, bottoming chamfer for threading to the bottom of blind holes
OSG
General purpose spiral-flute tap for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward to prevent clogging. Thread size 1/4"-20 UNC, H5 tolerance class for 2B-3B fit, 3 flutes, bottoming chamfer for threading to the bottom of blind holes