Koken 166S Screwdriver Heavy Duty Flat 5mm Blade 75mm x 175mm 68 24PK Product Information 155Nm hard torque TLA390 Product Information 155Nm hard torque output Reactive Force Control with Gyro Sensor delivers additional Anti kickback safety feature for users Highest power in its class new optimally designed motor and inverter circuit allows for continuously high speeds and under load operation Heavy duty metal gear case 13mm heavy duty metal keyless chuck New and improved side handle for greater control Variable Speed Control Well balanced and compact design only 190mm long Powered by 1080W High Powered 36V Multi Volt Batteries (Sold Separately) 36V High Performance brushless motor Compatible with ID Alloy plates Supplied without batteries and charger Sound Level 83dB(A) Highest Quality Koken Screwdriver