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OSG Spiral Flute Tap: M27x3 Metric, D8 / 4H-6H, 4 Flute - General Purpose Spiral-Flute Taps
OSGGeneral Purpose Spiral-Flute Taps

OSG Spiral Flute Tap: M27x3 Metric, D8 / 4H-6H, 4 Flute

The OSG Spiral Flute Tap (M27x3 Metric, MPN 2994801) is a general-purpose spiral-flute tap with a D8 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this…

SKU 3G-OTH-230729

Brand
OSG
Item
Spiral Flute Tap: M27x3 Metric, D8 / 4H-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
2994801
Type
D8 / 4H-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 (M27x3 Metric, MPN 2994801) is a general-purpose spiral-flute tap with a D8 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this specific OSG threading tool, sources it across our 14 industrial departments, and supports your application with specialist depth in controls and pumps.

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 such as steel, stainless steel, and aluminum. The spiral flute design pulls chips upward and out of the hole, preventing chip clogging and ensuring clean threads in deep or blind-hole applications.

What are the specifications of the OSG M27x3 spiral flute tap?

This OSG tap has a metric thread size of M27x3, a D8 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. It is designed for general-purpose threading in blind holes and is identified by manufacturer part number 2994801.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the M27x3 spiral flute tap to customers across multiple industries.

How to select the right OSG tap for blind hole threading?

For blind holes, choose a spiral flute tap like this OSG M27x3 model to evacuate chips upward. Match the thread size, pitch, and tolerance class (e.g., D8 / 4H-6H) to your application. Use a modified bottoming chamfer when threads must reach near the hole bottom.

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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This OSG spiral-flute tap is designed for threading blind holes in ferrous and non-ferrous materials. The spiral flute design efficiently evacuates chips upward, preventing clogging and ensuring clean threads. It features a modified bottoming chamfer for threading close to the bottom of blind holes. Tolerance class D8 / 4H-6H
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General purpose spiral-flute tap for threading blind holes. The spiral flute design evacuates chips upward, preventing clogging. Features a modified bottoming chamfer for threading close to the bottom of blind holes. Suitable for ferrous and non-ferrous materials
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OSG Spiral Flute Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 2991400)
This OSG spiral-flute tap features an M8x1.25 metric thread, D5 / 4H-6H tolerance class, 3 flutes, and a modified bottoming chamfer. Designed for threading blind holes, the spiral flute lifts chips upward to prevent clogging. Suitable for general-purpose tapping in manufacturing and maintenance applications
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