The ornamental design for a scraperchefknife, as shown and described.
FIG. 1 is a left-side perspective view of the chef knife;
FIG. 2 is a right-side elevation view of the chef knife;
FIG. 3 is a left-side elevation view of the chef knife;
FIG. 4 is a top elevation view of the chef knife;
FIG. 5 is a bottom elevation view of the chef knife;
FIG. 6 is a rear elevation view of the chef knife;
FIG. 7 is a front elevation view of the chef knife;
FIG. 8 is a close-up view of the chef knife depicted in FIG. 6; and,
FIG. 9 is a close-up view of the chef knife depicted in FIG. 7.
The broken line showing of the chef knife is included for the purpose of illustrating portions of the scales and rivets of the chef knife and forms no part of the claimed design.