Incisive and Durable Blades:The blades of de burr tool are made of tempered high-speed steel, which makes the edge sharpness and blade hardness and toughness excellent. Hardness:62-65HRC,long-time using hand deburring tool for you! Easy To Replace Blade:Simply pressing the button on the deburring cutter to replace the blade,mount to install.360 degree rotated,simple and easy using deburring scraper blade for you!Blade length:42mm(1.65inch). Proper Handle Size:Grip length 12.3cm(4.9inches),and hand deburring tool is made of ABS material,which make you feel comfortable and secure to hold this deburr tool. 10 Pcs Deburr Blades Available:10 pieces deburrer blade are available there in the package for this deburring tool set.Definitely one value pack of metal blade metal deburring tool . Wide Applications:This deburring tool edge cutter can be used as a machinist tool,from home use DIY projects to professional industrial applications,works on metal,steel,copper,aluminum,plastic,PVC,tin, trunking,etc.Maximum to satisfy your need on edge hole deburring tool.