Lockable tool with sliding scale release

A lockable tool, comprising:

• a frame having a length along a longitudinal axis, and a width perpendicular to the length along a width axis, the frame having a first wall extending along the longitudinal axis from a rear proximal position to a front distal position and having a first outside surface facing in the direction of the width axis;
• a first scale mounted in a sliding arrangement along the longitudinal axis of the first outside surface;
• a tool having a distal tip and a proximal base coupled to the frame and displaceable between a closed, retracted configuration within the frame and an open extended configuration outside the frame;
• a selectively releasable locking mechanism coupled to the first scale and adapted to selectively lock the tool in the extended configuration and in the retracted configuration and to unlock the tool when the locking mechanism is released by sliding the first scale with respect to the frame along the longitudinal axis.

A lockable tool, comprising:

• a frame having a length along a longitudinal axis, a width perpendicular to the length along a width axis, and a height perpendicular to the length and width along a vertical axis, the frame having a first wall extending along the longitudinal axis from a rear proximal position to a forward distal position and having a first outside surface facing in the direction of the width axis;
• a first scale mounted at the first outside surface in a sliding arrangement along the longitudinal axis;
• a tool having a distal tip and a proximal base coupled to the frame and displaceable between a closed, retracted configuration wherein the distal tip points towards the rear direction and an open extended configuration wherein the distal tip points towards the forward direction;
• releasable lock means linearly slidable in the width direction for locking the tool in the extended or in the retracted configurations when the scale is in a locking position, and unlocking the tool when the scale is slid along the longitudinal axis from the locking position.