Sealey HKE9 Hole-Saw Kit Electrician's 9pc M3-HSS Steel cutting edge welded onto alloy steel backing for heavy-duty performance. Vari-pitch tooth profile gives clean and fast cut. Suitable for cutting a wide range of metals, alloys and plastics. Supplied with pilot drills. Includes simple arbor for saws between 14-30mm and quick release arbor for saws between 32-152mm. Supplied in storage case. M3-HSS Steel cutting edge welded onto alloy steel backing for heavy-duty performance Vari-pitch tooth profile gives clean and fast cut Suitable for cutting a wide range of metals, alloys and plastics Supplied with pilot drills Includes simple arbor for saws between 14-30mm and quick release arbor for saws between 32-152mm Supplied in storage case Model No HKE9