CS106D74 - Koike 106D7 Size 4 High Speed Propane Cutting Tip

Precision and Speed: Koike 106D7-4 Propane Cutting Tip

Upgrade your cutting torch setup with the Koike 106D7-4, a premium cutting tip designed for welders who demand speed, precision, and durability. This size 4 tip is part of Koike's celebrated 106D7 series, which utilizes high-speed divergent technology to outperform standard tips. If you are cutting thick steel plate—specifically in the 2-inch to 3-inch range—using Propane or Natural Gas, this is the consumable that will help you get the job done faster and cleaner. The secret lies in the internal geometry of the tip; the divergent nozzle expands the cutting oxygen stream, accelerating it to supersonic speeds. This blasts molten metal out of the kerf more efficiently, allowing you to move the torch faster without losing the cut.

Durability is a major concern for any welder working in the field or the shop. The Koike 106D7-4 is built to last. It features a heavy-duty copper shell that withstands the intense reflected heat of piercing and cutting thick plate. Inside, a stainless steel liner ensures that the gas paths remain smooth and unobstructed. This liner helps prevent the tip from overheating and reduces the likelihood of flashbacks, keeping the operator safe. The tip fits standard Koike 100 series torches as well as Airco-style torches, making it a versatile addition to your existing equipment locker.

Using the 106D7-4 also improves the quality of your finished work. The high-velocity oxygen stream produces a very clean face on the cut edge with minimal slag drag. This means less time spent with a chipping hammer or grinder and more time welding or fitting. For optimal performance, ensure your regulator pressures are set correctly for a size 4 divergent tip (typically around 85-95 psi for oxygen). Whether you are working on heavy machinery repair, structural beams, or demolition, the Koike 106D7-4 offers the reliability and performance professional welders trust.

Features for the Professional Welder

• Faster Cutting: Increases cutting speeds by 20-30% over standard tips.
• Clean Cuts: High-velocity oxygen removes slag efficiently for a cleaner kerf.
• Robust Construction: Copper shell with stainless steel liner for long service life.
• Compatibility: Fits Koike 100 Series and Airco style hand and machine torches.