Milwaukee metal hole opening tool HSSCO D338 4.2 mm (fabric number 4932363260) is a high quality and durable metal hole opening tool. These tools are made of materials in HSSCO (Cobolt with high speed steel), and it gives them the ability to effectively work on high heat resistance and hard metal surfaces. This is an ideal choice for use on these tools in size 4.2 mm, metal, stainless steel and other hard materials. This hole-opening tools made with Milwaukee`s special design ensures that it works fast and accurate. Each package is available in a hole opening title. It is possible to increase the speed of your work with long-lived sustainability and high performance of these instruments. Milwaukee metal hole opening tool is an ideal choice for both professional users, both professional users.