The ornamental design for a handtool for installingpipe and hose clamps, as shown and described.
FIG. 1 is a front and left side perspective view of a hand tool for installing pipe and hose clamps in accordance with the new design;
FIG. 2 is a left side perspective view thereof;
FIG. 3 is a right side perspective view thereof;
FIG. 4 is a rear perspective view thereof;
FIG. 5 is a front perspective view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines of FIGS. 6 and 7 illustrate the bounds of the claimed design. Both the broken line boundary and the area there within form no part of the claimed design.