The Tracer Trueshot Chalk Marker Kit is an advanced deep-hole marking tool designed for precise chalk marking at depths from 0mm to 100mm. Using a simple point-and-spray action, it produces a sharp, accurate cross mark when pressed directly against the surface. The kit includes a replaceable chalk canister with a capacity of up to 350 shots, along with a 3-stage locking system (Spray, Lock, Replace). Built with a tough ABS body, the tool also features a tapered barrel for improved access, plus a pocket clip and lanyard hole for easy carrying.