Abstract: A modular bone clamp instrument includes a first elongated arm with a first clamping surface and a second elongated arm with a second clamping surface. A ratchet mechanism is provided between the first elongated arm and the second elongated arm. The ratchet mechanism allows the first elongated arm to move in a first direction, but prevents movement of the first elongated arm in an opposite direction. A squeeze handle is connected to the second elongated arm. The squeeze handle includes a forward handle member and a rear handle member. The rear handle member includes a head with an open chamber. The second elongated arm includes a shoulder that fits in the open chamber. A retention pin extends through the head and shoulder to secure the handle to the second elongated arm. Rotation of the retention pin allows the handle to be released from the second elongated arm.