Product details:

The 40 V MAX* string trimmer features a patented gear drive design for amplified torque when powering through overgrowth. The bump feed head provides 15 In. of swath with DeWalt's 0.080 In. line (DEWALT 0.095 In. line is also compatible). The variable speed trigger offers precise power control as well as performance and runtime management with the hi/lo speed control switch.