on their wheels. They can support vehicles of a 10 to 15 percent grade. They are commonly constructed of aluminum, hard rubber, wood, or urethane plastic. Cribbing – Cribbing consist of wood or plastic blocks that are made in a variety of shapes and sizes. Pneumatic lifting bag – Pneumatic lifting bags are air-pressurized devices that lift objects. They come in three basic types: high-pressure, medium-pressure and low-pressure. They are usually made with a rubber exterior reinforced with steel wire or Kevlar. When deflated they are about one inch thick. Winches – Winches are mounted on vehicles and are usually faster, stronger and have a greater pulling distance than other pulling devices. They are used in conjunction with chains or cables. Other equipment that can be used during a vehicle extrication include but are not limited to: Gasoline rotary saw – A well-maintained gasoline rotary saw is a must for fire ground and rescue operations. Choices include 12-, 14-, and 16-inch blade capabilities. Carbide toothed blades, abrasive blades, and diamond blades are among the common blade choices for saw uses. Reciprocating saw – This is a versatile tool that has made many uses in a rescue. Blades for reciprocating saws have undergone recent changes in composition. High-end carbide-tipped blades have had proven results in the fire service and can cut boron. Angle grinders – type 1 or a type 27 wheel are valuable in a metal scenario. Some of the above tools can be battery operated. Impact wrench/air ratchet – when paired with the right sockets, will speed up disassembly tasks. Air chisels are also ideal for rescue work. Depending on the tool size, capabilities may range from sheet metal to plate steel. Larger style air chisels are also effective on concrete. Oxy-fuel cutting torches may be oxygen gasoline, oxygen, acetylene, or exothermic type torches. Space limitations on the rig often determine the size of the cylinders and, therefore, the torch capabilities. Tempered and laminated glass removal tools – Prior to completing disentanglement tactics, all applicable glass must be managed. Tools designed specifically for this application are more appropriate than traditional forcible-entry tools. They create less shock to the vehicle and limit patient compartment intrusion. Pliers, adjustable wrenches, screwdrivers, etc. – Tools such as these can be used to disconnect the 12-volt battery system; remove interior trim at all push, pull and cut locations; disassemble vehicle components, etc. Wire cutters