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OSG Spiral Flute Tap: M20x2.5 Metric, OH2 / 6H, 4 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: M20x2.5 Metric, OH2 / 6H, 4 Flute

The OSG Spiral Flute Tap (M20x2.5 Metric, MPN 11757) is a general-purpose spiral-flute tap with an OH2 / 6H tolerance class, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and sources this…

SKU 3G-OTH-230019

Brand
OSG
Item
Spiral Flute Tap: M20x2.5 Metric, OH2 / 6H, 4 Flute
Category
General Purpose Spiral-Flute Taps
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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
11757
Type
OH2 / 6H, Modified Bottoming Chamfer
Flute
4

Technical Documents

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

Product Description

The OSG Spiral Flute Tap (M20x2.5 Metric, MPN 11757) is a general-purpose spiral-flute tap with an OH2 / 6H tolerance class, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and sources this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps, and controls — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is an OSG spiral flute tap used for?

An OSG spiral flute tap is used for threading blind holes in metal, as the spiral design pushes chips upward and out of the hole. This prevents chip clogging and allows clean threads in materials like steel, stainless steel, and aluminum. It is ideal for production machining and maintenance applications.

What are the specifications of the OSG spiral flute tap M20x2.5?

This OSG tap has a metric M20x2.5 thread size, a 6H tolerance class, and an OH2 surface treatment for improved wear resistance. It features 4 flutes and a modified bottoming chamfer, enabling threading close to the bottom of blind holes. The manufacturer part number is 11757.

Where to buy OSG taps in worldwide?

3G Electric supplies and delivers OSG taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the M20x2.5 spiral flute tap and support procurement teams across 14 industrial departments. Contact us for availability and delivery to your location.

How to select the right OSG spiral flute tap for blind holes?

Select an OSG spiral flute tap based on thread size, pitch, and material. For blind holes, choose a modified bottoming chamfer to thread close to the hole bottom. Match the tap tolerance (e.g., 6H) to your thread class requirement. Consider surface treatment like OH2 for longer tool life in harder materials.

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: M20x1.5 Metric, OH2 / 6H, 4 Flute, Modified Bottoming Chamfer (MPN 11762)
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OSG Spiral Flute Tap: M20x1.5 Metric, OH2 / 6H, 4 Flute, Modified Bottoming Chamfer (MPN 11762)
Metric spiral-flute tap, M22x2.5 thread size, OH2 / 6H tolerance class, 4 flutes, modified bottoming chamfer. Designed for threading blind holes in ferrous and non-ferrous materials; spiral flutes evacuate chips upward to prevent clogging
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Metric spiral-flute tap, M22x2.5 thread size, OH2 / 6H tolerance class, 4 flutes, modified bottoming chamfer. Designed for threading blind holes in ferrous and non-ferrous materials; spiral flutes evacuate chips upward to prevent clogging
Metric spiral-flute tap with M18x1.5 thread, OH2 / 6H tolerance class, 4 flutes, and modified bottoming chamfer. Designed for threading blind holes in ferrous materials; the spiral flute evacuates chips upward to prevent clogging. Suitable for general-purpose tapping in manufacturing and maintenance applications
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Metric spiral-flute tap with M18x1.5 thread, OH2 / 6H tolerance class, 4 flutes, and modified bottoming chamfer. Designed for threading blind holes in ferrous materials; the spiral flute evacuates chips upward to prevent clogging. Suitable for general-purpose tapping in manufacturing and maintenance applications
OSG Spiral Flute Tap: M18x2.5 Metric, OH2 / 6H, 4 Flute, Modified Bottoming Chamfer (MPN 11730)
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OSG Spiral Flute Tap: M18x2.5 Metric, OH2 / 6H, 4 Flute, Modified Bottoming Chamfer (MPN 11730)
This spiral-flute tap is designed for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward, preventing clogging in deep or blind-hole applications. It features a M24x3 metric thread size, OH2 / 6H tolerance class, 4 flutes, and a modified bottoming chamfer for producing precise metric threads
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This spiral-flute tap is designed for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward, preventing clogging in deep or blind-hole applications. It features a M24x3 metric thread size, OH2 / 6H tolerance class, 4 flutes, and a modified bottoming chamfer for producing precise metric threads
Metric spiral-flute tap with M10x1.5 thread, OH2 / 6H tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes in ferrous and non-ferrous materials, with chip evacuation upward to prevent clogging
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Metric spiral-flute tap with M10x1.5 thread, OH2 / 6H tolerance, 3 flutes, and modified bottoming chamfer. Designed for threading blind holes in ferrous and non-ferrous materials, with chip evacuation upward to prevent clogging

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General purpose spiral-flute tap for threading blind holes. Modified bottoming chamfer allows threading close to hole bottom. Spiral flute design evacuates chips upward to prevent clogging. Suitable for producing threads in steel and stainless steel with class 2B or 3B fit
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This OSG spiral-flute tap is designed for general purpose threading in blind holes. It features a bottoming chamfer for threading close to the hole bottom, and TiN coating on high-speed steel reduces friction. The 3-flute design aids chip evacuation. Suitable for through-hole and blind hole applications in various materials
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