CMT 317.280.12 Hinge Boring Bit 28 x 57.5mm LH Column Caps Two-speed gearbox provides low-speed range

Two-speed gearbox provides low-speed range of 40-365 RPM and high-speed range of 220-2

Air Power Drawbar (pneumatic) for fast and convenient tool changes

Three selectable power levels allow users to match fastening force to the task at hand

real-time position readout for all three axes

It accepts collets ranging from 1/8-7/8 in

CMT 317.280.12 Hinge Boring Bit 28 x 57.5mm LH Column Caps Two-speed gearbox provides low-speed rangeThe CMT 317. 280 is a (Hinge Boring Bit (57. 5mm)). Hinge boring bit for drilling flat bottom hinge cup holes in cabinet doors and face frames. The flat bottom geometry is required for European style concealed hinges. Rotation: Left hand (LH). SPECIFICATIONS Diameter (D) 28mm Total Length (L) 57. 7mm Shank (S) 10x26mm Tooth Geometry Negatively ground spurs Spurs 2 Number of Teeth 2 Product Type Hinge Boring Bit Series Hinge Boring Bit (57. 5mm)