Inside Pipe Cutter 1/4 Inch Hex Pvc Plumbing Inside Cutter Internal Plastic Pipe Cutter Set (32mm X3 44mm X1)_x000D__x000D__x000D__x000D_Inside pipe cutter kit installation sequence: extension rod (first) - serrated washer - saw blade - flat washer - screw (last). The screws must be tightened and reinforced! Refer to the fourth photo for example~_x000D__x000D_A set of PVC pipe internal cutter with 4 saw blades (3 blades with 1.25 inch diameter and 1 blade with 1.75 inch diameter), and two sets of screw fastening parts. Please protect the saw blade. There is a layer of protective oil on the saw blade._x000D__x000D_The saw handle is made of heavy-duty carbon steel for hardness, durability and smooth surface. The saw blade is made of strong, durable and sharp, very suitable for PVC and plastic pipes, also can be used for soft metal pipes, but when cutting soft metal pipes, please use coolant or water when cutting to prevent the saw blade from overheating._x000D__x000D_The overall length of pipe cutter is 10.5 cm(4.13 inch), and the length of the hexagonal handle is 2.8 cm(1.1 inch). The pipe cutter is suitable for most electric drills and is very easy to install and replace. Small in size and easy to carry, it is not only suitable for cutting from the outside but also for work scenarios where pipes need to be cut from the inside._x000D__x000D_Three major precautions: 1. Be sure to wear gloves and goggles when using rotary tool accessories and be aware of those around you. 2. The maximum speed of the saw blade should not exceed 20,000 rpm. 3. Keep out of reach of children to prevent injury._x000D__x000D_Material: carbon steel_x000D__x000D_color: Silver_x000D__x000D_Package Contents:_x000D__x000D_1 set x internal pipe cutter_x000D__x000D__x000D__x000D_