[DETAIL]<br>1PCS 12-100mm HSS Hole Saw Cobalt High Speed Steel M35 Stainless Steel Tool Set For Metal Stainless Steel Drilling Metalworking<br>Scope of application:<br>Metal hole opener, which can be used for opening holes in metal such as thin metal, iron plate, channel steel and aluminum alloy.<br>Instructions for use:<br>When drilling, the hole opener should slowly contact the object to be drilled, can not hit the workpiece, and the rotation speed should be low (the larger the hole opening, the lower the rotation speed). If necessary, coolant or water can be added. Please pay attention to slow down the feed speed when you are about to drill through.<br>1. The material to be cut must be fixed and cannot be moved. It should be at a right angle of 90 degrees to the opening.<br>2. When positioning the drill, please wait a moment and then drill slowly.<br>3. In the course of operation, if there is any abnormality or unsatisfactory troubleshooting, please stop working and cut it to work.<br>4. Please do not use too much force when screwing up and down, so as not to screw the screw.<br>5, can be used in pistol drills, bench drills, magnetic drills, air gun drills and other drilling machines<br>Features:<br>100% brand new and high quality and professional<br>Cuts quickly, precise holes in Steel, Stainless Steel,iron, Copper, Brass, Aluminum, Fiberglass, Formica And Other Laminates In Seconds<br>Perfect for Installing Locks, Knobs in Doors and Cabinets or Drilling Larger Diameter Holes Through Desks Etc.<br>Can be used as car bus truck parking sensor radar system drilling hole<br>Provide 27 kinds of hole saw ,meet your professional needs<br>Specification:<br>Size (Outside dia.) :<br>12-100mm<br>Material:HSS<br>Package include:<br>1 pc HSS Drill Bit Hole Sa<br><br>[ATTRIBUTES]<br>- High-concerned chemical: None<br>- Brand Name: onmaiwei<br>- Origin: Mainland China<br>- High-concerned chemical: None<br>- Brand Name: onmaiwei<br>- Origin: Mainland China<br>- Certification: CE<br>- DIY Supplies: Metalworking<br>- Material: High Speed Steel<br>- Type: Core Drill Bit<br>- Use: Metal Drilling