DD500X – DRILL DOCTOR INDUSTRIAL 2.5MM – 13.0MM DRILL BIT CAPACITY The DD500X is designed for durability and has the flexibility required to sharpen the largest range and most popular sizes of dull or broken bits-including split points and masonry bits. Increase capacity with optional 3/4 chuck accessory. One piece alignment system improves precision and adjustability. Longer jaws hold bit more precisely and jaw guides eliminate jaw twisting on small bits. User replaceable diamond sharpening wheel design for simple replacement. Cast aluminium point angle shuttle for added durability. Sharpens 3/32 1/2 drill bits. Sharpens High-speed Steel Carbide TiN-coated and Masonry bits. Sharpens both 118° and 135° point angles.