JCB 900w Hammer Drill Model Number: HD900-2 In-use data available The JCB 900W corded hammer drill is best suited for sustained or heavy duty drilling in hard materials. Compare View Product JCB Hammer Drill Model Number: HD800-2 In-use data available This JCB corded impact drill is best suited for sustained or heavy-duty drilling in hard materials, with a 2 speed variable gearbox providing greater torque versatility. It has a maximum drilling capacity of 20mm in masonry, 40mm in wood and 13mm in metal. Compare View Product