"Kitagawa's B200 Series (With Adaptor) chucks are manufactured from high grade alloy steel.\r\n\r\nThree jaw wedge style power chucks deliver up to 20% more speed, gripping force and bore size when compared to conventional chucks.\r\n\r\nThese chucks...
"Steel serrated soft jaws to suit a 12 Inch power chuck. Jaws are manufactured from 080M15 Steel. Good Quality of of material allows for machining with a good finish."