Digger, 7/8 x 3-1/4" Hex Shank, 2350 BPM, 2.5" Stroke Length, 1.69" Bore. Ideal for digging clay, frozen ground, horizontal concrete demolition, tunneling, and bridgework, the 93 Series diggers can tackle almost anything. With a short, powerful 2.5 inch piston stroke and multiple configurations available, you can remove material quickly and easily. Access: The 93 Series features a tease throttle for maximum precision, coupled with a D-shape handle to allow access to tighter spaces. Durability: With a rubber buffer retainer to absorb shock and protect the tool, the 93 Series diggers will last for years. Reliability: The side exhaust and steel cone increase user safety and productivity for better use every time. Weight: Built with premium materials, the 93 Series diggers are lightweight and easy to use.