The ornamental design for a tool for crafting, as shown and described.
1. Tool for crafting
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Top
1.5 : Bottom
1.6 : Left
1.7 : Right
Figure 1.1 is a perspective view of a tool for crafting showing my new design; figure 1.2 is a front elevational view thereof; figure 1.3 is a back elevational view thereof; figure 1.4 is a top plan view thereof; figure 1.5 is a bottom plan view thereof; figure 1.6 is a left-side elevational view thereof; and figure 1.7 is a right-side elevational view thereof.