Background Cardiac implantable electric devices are commonly used to treat heart failure. Little is known about temporal and geographic variation in use of cardiac resynchronization therapy (CRT) devices in usual care settings.
A hammer drill, also known as a rotary hammer, roto-drill or hammering drill, (see also rotary drill) is a rotary drill with a hammering action. The hammering action provides a short, rapid hammer thrust to pulverize relatively brittle material and provide quicker drilling with less effort.
A dado saw blade is a circular blade used to making groove cuts of different widths in wood fitting into the groove the edge of another piece of wood to make a joint. The Demolition Saw Blade can cut through most building materials (roofing, shingles, wood, nails, sand and other non-ferrous materials).