Specification Product Name:Metal Saw Cutting Hole Opener Model:Metal Woodworker's Hole Opener Colour: Red Material:Metal Total Length:80-95mm Reaming Diameter:15-100mm Drill Length:35-40mm Diameter of Connecting Rod:10mm Features Metal carpentry hole opener with sharp teeth, fast and smooth cutting, low vibration; durable, shatterproof, the edge is not easy to fall off. Sharp blade, high hardness, wear-resistant, long service life. The use of triangular Bing connecting rod clamping firm, safe operation, need to be able to clamp the range of more than 10mm drill clamps for connection and use. Application Widely used in plastic boards, PVC boards, thin wood boards, composite boards, gypsum boards, board holes, household wood, galvanised pipes, fire hoses, plastics, soft metals, gypsum boards and other openings such as the operation of openings, can be directly connected to the electric drill, cordless drill and other tools to use. Notes for use ▫️ 1.The processed plate should be fixed firmly at a 90 degree right angle to the hole opener. ▫️ 2.When the positioning drill drills through, please wait for a while, and then slowly drill holes. ▫️ 3.During the operation, if there is any abnormality or unsatisfactory chip removal, please stop working and clean up the chips before working again. ▫️ 4.Please remove the spring when processing more than 10MM thickness. ▫️ 5.Warm Tips: (1). The inner wall of 90mm and 100mm opener is about 31mm deep. (2). 15-50mm hole opener connecting rod drill bit is not removable, more than 60mm connecting rod blackening treatment can be removed.