Abstract: A hand-held water injecting tool (10) provides for the admixture of water to cementitious materials. The tool (10) is generally comprised of a water-conveying tubular body (12), and a blade assembly (16) having a tip (17). The tubular body (12) has a circuitous configuration to afford both a built-in, ergonomic handle portion (35) and a capacity to perform mixing operations within relatively high-walled containers. At a water-emitting end (20) are present a pair of nozzles (52) which are integrally fashioned from the tubular body (12) to impart jet action to the emitted water. The blade assembly (16) includes a generally triangularly shaped blade (62) attached to the second end (20) such that the water is emitted from the nozzles (52) at a location proximate and external to the blade tip (17) so that the force of the fluid is used in close conjunction with mechanical action of the blade.