A set of three high speed steel bits that are ideal for drilling holes in a variety of materials especially thin sheet metal fibreglass upvc and most plastics. The stepped feature allows holes to be drilled to a precise width without the need for drilling a pilot hole or gradually increasing the diameter of drill bits used.
 
Steel bit sizes: – 4 -12mm 6 – 20mm & 6 – 30mm.
 
Supplied in wooden storage case.