The OSG Metric Spiral Point Threading Tap in M30 x 3.5 is a through-hole threading solution designed for precise, durable metalworking. Crafted from cobalt-enriched HSS-E and finished with a steam oxide coating, it delivers reliable heat resistance and extended tool life for demanding threading operations in through holes across steel, cast iron, and other alloys.

• Size: M30 x 3.5 metric spiral point tapping tool designed for through-hole applications
• Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and heat resistance
• Coating: Steam oxide finish to reduce friction and boost durability during extended use
• Design: Spiral point (gun-nose) geometry that pushes chips forward, ideal for through holes
• Compatibility: Suitable for multi-material threading, including steel, alloy steel, cast iron, and other common metals

The spiral point design aids rapid chip evacuation, minimizing chip packing and improving thread quality in through-hole work. The combination of HSS-E substrate and steam oxide coating increases wear resistance and allows for more consistent performance under higher cutting temperatures, helping to extend tool life on demanding jobs. This tap is well-suited for shop environments that require reliable,-repeatable threading in through holes from metal fabrication to automotive components, delivering clean threads and smoother final assemblies. The tool’s geometry is compatible with a range of common materials, making it a versatile choice for multi-material production runs.