Square Hole Mortiser Drill Bit Set

It helps to prevent frustration and saves you time as you complete your tasks. A MUST HAVE for every household and workshop garage! Features: Fits all mortising machines and drill press attachments Size: 6MM, 6.4MM, 8MM, 9.5MM, 12.7MM Made of the highest quality tool steel High performance flute design geometry for superior chip extraction Hardness: HRC 48~50 About our product: Professional wood drill bit, suitable for construction, installation, renovation, decoration industry, etc Special steel, heat treatment, high hardness, lengthened core, high concentricity It will get double effect by matched use with mortise and tenon machine, the square hole punching needs to use electric drill, hammer & other tools This quality set also comes with a convenient plastic storage case Cutting edge: Superb grinding process, cutting edge more sharp and more durable Radial drill sleeve, standard chip flute design, easy to exclude the side of the sawdust to improve the drilling rate Package