LING'S SHOP New 30-300mm Adjustable Metal Wood circle cutter kit Hole Saw Drill Bit DIY Tool Material: Alloy Adjustment Range: 30mm-300mm Adjustment Range: 30mm-300mm Quantity: 1 set This cutter comes with 2 changeable centre bits which mean you can cut thin or thicker materials Are widely used in DIY speaker openings, spotlights openings,drilling operations on plastic material