Milwaukee metal hole opening tool HSSCO D338 4.0 mm 2 pieces (fabric number 4932363258) is a high-quality and durable metal hole opening tool. These tools are made from HSSCO (Cobolt with high speed steel), which 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, metal, stainless steel and other harsh materials in the size of 4.0 mm. This hole-opening tools made with Milwaukee`s special design ensures that it works fast and accurate. Each package is available in the title of two holes. It is possible to increase the speed of your work with long-term sustainability and high performance of these instruments. Milwaukee metal hole opening tool is an ideal choice for both professional users, both professional users.