Features: *100% brand new and high quality *This product can wear off the scratches on the inner wall of the cylinder; the nut controls and the adjustable grindstone tension to ensure close contact with the cylinder wall *Fitted with Fine Stones *Knurled Nut Controls Tension *Flexible Shaft for ease of use and self centering *Flexible shaft, controlled spring action and spread control limiter are features which contribute to faster changing from one cylinder to another with fastest cutting action *Engine cylinders are simple for cars, trucks, buses, tractors, industrial engines and small air-cooled engine cylinders and other multi-purpose grinding machines Specifications: *Color: As Pictures Show *Material: 45# Steel Galvanized *Specification 1: 1-1/8" three-claw cylinder sander Size range: 3/4" to 2-1/2" Grinding stone length: 28*6mm *Specification 2: 2" cylinder sander Size range: 1-1/4" to 3-1/2" (32-89mm) Grinding stone length: 51*7mm *Specification 3: 3" cylinder sander Size range: 2" to 7" (51-177) Grinding stone length: 76*10mm *Specification 4: 4" cylinder sander Size range: 2" to 7" (51-177) Grinding stone length: 100*11mm *Optional Size: 1-1/8inch, 2inch, 3inch, 4inch Package Contents: 1 Set Honing Tool Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.