The MILWAUKEE M18 FUEL Variable Speed Braking Die Grinder, Paddle Switch w/ ONE-KEY delivers user demanded runtime with the ability to deburr up to 35 pipes on (1) M18 5.0ah XC Battery. Milwaukee's cordless Die Grinder offers variable speeds from 8,000-20,000RPMs to provide users the precision and power needed in key applications. Equipped with RAPIDSTOP technology that Provides Braking in under 2 seconds, the M18 FUEL Variable Speed Braking Die Grinder, Paddle Switch w/ ONE-KEY, gives users enhanced safety, while maximizing the amount of work completed. Compatible with ONE-KEY, this die grinder wirelessly connects to a smart phone to track and manage the tool, providing users with visibility to where tools are across their network of jobs.