The rotary center group is made of high-quality steel with high hardness and durability 2. Easy to operate and high efficiency 3. The drilling depth is adjustable and adjustable 4. Suitable for small lathe DIY woodworking 5. Compact size and can be quickly installed on the lathe Features : The rotary center group is made of high-quality steel, with high hardness and durability. Easy to operate and high efficiency. Drilling depth is adjustable. Suitable for small lathe DIY woodworking. Compact size allows quick installation on the lathe. Specifications: Condition: Material: Hard Steel Color: Silver > Maximum Extension Distance: Approx. 60mm/2.36in Distance between holes: approx. 64mm/2.52 inches Clamping range: 1.5~10mm/0.06~0.39 inches Center height: approx. 35 mm / 1.38 in Overall dimensions (length x base width x height): approx. 170 x 70 x 58 mm / 6.69 x 2.76 x 2.28 inches Weight: approx. 710g Package includes: 1 x Rotation Center 3 x Wrench Note: Please allow slight measurement errors due to manual. Thank you for your understanding.