G25-140 G25140 Drill Bit SQC 6"  3 Flutes Diameter 2.0mm Maximum Inside Diameter 1.0mm Cannulated 20mm Flute Length G25-142 G25142 Drill Bit SQC 6"  4 Flutes Diameter 3.5mm Maximum Inside Diameter 1.3mm Cannulated 35mm Flute Length G25-141 G25141 Drill Bit SQC 6 1/2"  4 Flutes Diameter 3.2mm Maximum Inside Diameter 1.75mm Cannulated 40mm Flute Length G25-143 G25143 Drill Bit SQC 6 1/2"  4 Flutes Diameter 4.5mm Maximum Inside Diameter 1.75mm Cannulated 45mm Flute Length G25-144 G25144 Drill Bit SQC 9"  4 Flutes Diameter 4.5mm Maximum Inside Diameter 2.0mm Cannulated 40mm Flute Length