Lightweight and Handy: The head and the base of the jig are made of die cast aluminium, which makes it strong and lightweight .***Drilling Made Easy: it's a very convenient jig when it comes to straight drilling or drilling in small metal objects, it's a must have for diy consumers.***Adjustable: every drill has a different collet (collar) size, it has multiple pvc packing rings to suit different sizes of collets upto the maximum size of 43mm.***Specifications: stand height 400mm, maximum collet size 43mm, Adjustable drilling depth upto 60 mm, aluminium base, stainless steel pipe , Die cast metal head.***Contents: Aluminium Base, Die Cast Aluminium Head, 400mm Steel Pipe, Steel Handle, Allenkey.***Specifications: stand height 400mm, maximum collet size 43mm, Adjustable drilling depth upto 60 mm, aluminium base, stainless steel pipe , Die cast metal head. Contents: Aluminium Base, Die Cast Aluminium Head, 400mm Steel Pipe, Steel Handle, Allenkey.