SUPERIOR MATERIAL. The deburring tool kit set is super heavy-duty, rotary mounting head being made of tough M2 high speed steel, blades included being made of quality high speed steel.EFFICIENT & COMFORTABLE. Features 360 degree rotated mounting head, comfortable handle and replaceable design, this tool kit set is an Perfect product for even long time using. The blade is mounted on the handle that rotated 360 degrees, works great for both right/left handed friend. You can replace the blade by simply pressing the button, which is pretty simple. The Grip is 4.65 inches in length, 0.8 inches in diameter, and it is comfortable and secure to hold.WIDE APPLICATION & STORAGE HANDLE DESIGN. The whole set came with 21 blades, perfect for cutting the circular holes edge, deep holes, straight edge, curved edges, slots. It suits from home use DIY projects to professional industrial applications, effective on steel, copper, aluminum, plastic, PVC, tin, trunking and most of the work-piece trimming operations. with the storage handle design, spare blades are easily kept in and could be reached at any time.21 BLADES INCLUDED. with a total of 21 pieces blades per order. 11pcs BS1010 Black HSS High Speed Steel Blades, Suitable for wood, plastic and soft metal (such as copper, aluminum and silver). 5pcs BK3010 Black HSS High Speed Steel Blades, Suitable for (diameter Less than 1.5mm) hole and clip clean. 5pcs BS1018 Silver HSS High Speed Steel Blades (Containing cobalt for strong cutting), Suitable for stainless steel.size:6.73x3.78x1.14 inchMaterial:High speed steelcolour:RedPackage Contents:11 * BS1010 black high speed steel blade5 * BK3010 black HSS high speed steel blade5 * BS1018 silver HSS high speed steel blade1 * HandleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.