Description: Size Information1/4" Hex Shank for Rotary Drill Saw with 6.35mm/0.25inch head, length about 99mm/3.90inch, bore diameter about 5.2mm/0.20inch, with 4pcs Saw Blade (3x32mm diameter, 1x44mm diameter)Metal MaterialHex Shank for Drill Rotary Tool is made of steel material, saw blade are made of high speed steel, high hardness and sturdy structureHexagonal Head DesignThe shank equipped with a hexagonal head, easy to install and disassemble, stable and reliable.Professional AccessoriesReplacement 1/4" hexagonal handle and 4pcs saw blade for professionalsWidely Applicable1/4" hex shank and 4pcs blade replace parts suitable for shank rotation tools, can be used for cutting and processing materials such as metal, wood, pp, etc. Size Chart: 4pcs Saw Blade (3x32mm/1.26inch diameter, 1x44mm/1.73inch diameter) Package Includes: 1 Hex Shank 4 Blade Note: Please allow slightly errors 1-2cm differences due to manual measurement.