Description E.D.S.-Diamond Economy Core Bits Core bits work with a standard electric drill and only need water as a lubricant. 1/8” x1-1/8 Long (4mm x 3cm) Reg.12.95 3/16”x1-3/8”Long (5mm x 5.5cm) Reg.$13.95 1/4”x1-3/8”Long (7mm x 3.5cm) Reg.$14.95 3/8”x1-3/8”Long (10mm x 3.5cm) Reg.$15.95 1/2”x1-3/8”Long (13mm x 3.5cm) Reg.$16.95
