Mini Spiral Mill-Thread Line

July 15, 2019
Mini Spiral Mill-Thread Line

Known for smooth cutting operations at high feed rates that reduce machining time, the Carmex Precision Tools Mini Spiral Mill-Thread line is now available in inch sizes, as well as metric. The spiral fluted toolholders, with internal coolant bore, hold from one to three inserts and are available in comparably small cutting diameters. The spiral design reduces vibrations and chatter, resulting in a high-quality surface finish.

According to Jim White, national sales manager for Carmex USA, “The popularity of the Mini Spiral Mill-Thread line in metric dimensions has created a demand for offering the line in inch sizes. The variety of sizes and the availability of MT7 submicron grade with TiAIN multilayer coating offer customers a range of choices and the assurance of longer tool life. The extension of the product line is evidence of Carmex’s continuing commitment to providing an indexable option in smaller diameter tools.”

Related Glossary Terms

  • chatter

    chatter

    Condition of vibration involving the machine, workpiece and cutting tool. Once this condition arises, it is often self-sustaining until the problem is corrected. Chatter can be identified when lines or grooves appear at regular intervals in the workpiece. These lines or grooves are caused by the teeth of the cutter as they vibrate in and out of the workpiece and their spacing depends on the frequency of vibration.

  • coolant

    coolant

    Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.

  • feed

    feed

    Rate of change of position of the tool as a whole, relative to the workpiece while cutting.