Features: new and high quality. Made of high-quality high speed steel materials, practical and durable. Suitable for cutting wood, plastic, machinable metal, nail embedded wood, plywood, pipes, etc. The best cutting performance of teeth combines with variable tooth pitch and non-binding clean edge design ensure hole saw blade cuts smooth, clean and fast. These hole saws are for ideal for work where high performance and accuracy are needed. We offer 5 kinds size optional, you can choose one or more according to your needs. Specifications: Material: High Speed Steel Size: As the Picture Show Type: 35x60x3mm/50x80x3mm/55x85x3mm/65x105x3mm/75x115x3mm/Dust Cover(10mm=0.39') Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Hole Saw Cutter