Self-contained groover has built-in temperature controls, eliminating the additional cord and separate control box common with other groovers. DonÕt let the small package fool you; this groover has the ability to cut small intricate grooves yet still handle removing material up to 1/2". Tapered, razorsharp blade grooves fast and easy. To operate, insert a single blade into groover, set blade height with a tire depth gauge, and set the power level. Place the cutting edge against the tire surface and obtain instant heat by simply squeezing the trigger. Groover features a Hi/Low toggle switch and a temperature control dial in the handle for setting desired heat level. ÒAll-In-OneÓ groover requires ÒAll-In-OneÓ blades; do not use standard groover blades with this groover.