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OSG Spiral Flute Tap: M8x1.25 Metric, D4 / 4H-6H, 3 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: M8x1.25 Metric, D4 / 4H-6H, 3 Flute

The OSG Spiral Flute Tap (M8x1.25 Metric, MPN 1645508124) is a D4 / 4H-6H, 3-flute, modified-bottoming-chamfer tap designed for threading steel and stainless steel. 3G Electric interprets your demand for this…

SKU 3G-OTH-218618

Brand
OSG
Item
Spiral Flute Tap: M8x1.25 Metric, D4 / 4H-6H, 3 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
1645508124
Type
D4 / 4H-6H, Modified Bottoming Chamfer
Flute
3

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

Product Description

The OSG Spiral Flute Tap (M8x1.25 Metric, MPN 1645508124) is a D4 / 4H-6H, 3-flute, modified-bottoming-chamfer tap designed for threading steel and stainless steel. 3G Electric interprets your demand for this precision tool, sources it from OSG, and provides a quote with dedicated support across 14 industrial departments — with specialist depth in combustion, pumps, and controls as a trust anchor.

Frequently Asked Questions

What is the OSG spiral flute tap M8x1.25 used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap M8x1.25?

This tap has a metric M8x1.25 thread size with a D4 / 4H-6H tolerance class. It features 3 flutes and a modified bottoming chamfer. The manufacturer part number is 1645508124. It is designed for threading blind holes in steel and stainless steel materials.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute taps through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this M8x1.25 tap or other OSG tooling.

How to select the correct OSG spiral flute tap for steel?

Select based on thread size, pitch, and tolerance class. For blind holes in steel, use a spiral flute tap with a bottoming chamfer. The OSG D4 / 4H-6H tolerance ensures precise fit. Match the tap to material hardness and hole depth. Consult OSG technical data for optimal speeds and feeds.

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 spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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