Hiltex 9Y-4U2D-H0GN Cordless Die Grinder Rotary Tool Kit (61 Piece) The cordless rotary tool makes great use for projects without the hassle of a long and winding wire and gives you the ability to work in tight and awkward spaces Lightweight design allows you to reduce hand fatigue weighing in just under two pounds The long lasting 3.6V rechargeable battery allows you to work efficiently and comes with a UL/CUL approved adapter Versatile kit comes with a wide range of accessories that can enable you to perform grinding, deburring, buffing, and even engraving; comes with 4 collet sizes: 1, 2.3, 3, and 3.2mm Entire kit along with accessories are conveniently stored in a sturdy plastic case for easy and convenient storage