Description:4pcs 20\/25\/32\/51mm Bi-metel Hole Saw Cutter Set with 2 ArborSpecification: Material: Tungsten Steels Carry case: 51mm、32mm、25mm、20mm Quantity: 1Set (4 Holesaws+2 Arbors)    Features: Durable and practical Suitable for drills with 10-13mm chuck diameters These holesaws have a vari pitch tooth design and are designed to cut metal、 mild steel、 aluminium、 PVC and wood.  Package Included: 2 x Arbor 4 x Holesaw  More Details: