Stryker Impaction Bur Guard REF 2296-301, 2296-300, 0260-901-300, & 5400-300; Stryker Instruments, Kalamazoo, MI. || Intended to be used with impaction Drill. Drill is used for surgical procedures involving precision drilling and cutting of bone and hard tissue. The bur guard covers the nose of the handpiece and the shaft of the cutting accessory to prevent exposure to heat and moving parts, as well as minimize bur whip and handpiece vibration.