The BF-Series standard plus models feature a selectable Double Hit Mode for soft joint applications and a selectable Soft Start mode. Engineered for high volume manufacturing applications the brushless motor design ensures durability and reduces the standard maintenance costs associated with brush type electric screwdrivers. The BF power tool is ESD certified, ensuring less than 1 Ohm at the bit tip. ESD management assures product quality, cost savings and a reduction in overall ESD failures. Manufacturing engineers involved with microelectronic products are aware of the importance of controlling Electrostatic Discharge (ESD) failures. Lapses in preventing the occurrence of electrostatic discharge can affect production yields, manufacturing costs, product quality, product reliability, reputation and profitability. Requires STC40 transformer (power supply). Model:BF120P ESD Plus Drive Size:1/4" F/Hex Range : 19.6 - 117.6 cN.m, 1.7 - 10.4 lbf.in, 2 - 12 kgf.cm. Tool Weight:14.5 oz. Tool