Diamond Coated Twist Drills Set Wax & Tools Block measures 5-1/8x 2-1/2x 3/4and

Block measures 5-1/8x 2-1/2x 3/4and contains 27 hemispheric depressions

More than 65 metalworking techniques are clearly explained in this invaluable reference tool with over 500 illustrations

Diameter: 12 x 12mm

Used to hold rings with vise-like grip while polishing

Flexible gooseneck design allows the user to adjust the lamp to various heights and positions

Diamond Coated Twist Drills Set Wax & Tools Block measures 5-1/8x 2-1/2x 3/4andWe have added a medium fine grit diamond coating to the tips ofhigh speed twist drills to drill stone, ceramic, glass and other hardnon metallic materials. The drills are made of superior high gradesteel. Available individually or in sets of twelve. Dr