1. Set Contents: This set includes 1 × guide rail (11 inches), 1 × holder, 1 × cutting blade, and 2 × wrenches OR 2 × guide rails (11 inches), 2 × holders, 2 × cutting blades, and 4 × wrenches. The complete accessory set can be applied to a variety of PVC pipes to meet diverse cutting requirements while achieving smooth and precise cuts. 2. Application: This PVC inner pipe cutting tool is suitable for PVC pipes ranging from 11/2 inches to 8 inches. The diamond grinding discs can also be used for cutting or polishing harder materials such as glass, marble, jade, crystal, stone, and wood. 3. 7Inch Cutting Depth: This PVC inner pipe cutting tool is designed for cutting pipes up to a depth of 7 inches. It features a removable guide disc and a locking ring, allowing easy adjustment of the cutting depth (07 inches) by repositioning the locking ring. Markings assist in controlling the cutting depth. 4. Durable Construction: This PVC inner pipe cutting tool is made of stainless steel, ensuring sturdiness and longevity to meet usage demands.