JET J-A5818 15" Variable Speed Floor Model Drill Press 230/460V 354551 These JET Drill Presses use a variable-speed motor with the stepped-pulley system; and come equipped with a continuously variable transmission. This enables use at a wide range of speeds; as well as the ability to change speed during operation. A scale-marked hand wheel that matches the desired machine speed is mounted to a reduction gearing system for precise operator control. This adjusts the gearing ratio between the motor's fixed pulley and the output shaft's variable pulley; changing the speed of the chuck. A tensioner pulley is implemented in the belt transmission to take up or release the slack in the belt as the speed changes. Full bearing support on quill for maximum spindle stiffness Handwheel speed adjustment of 400 to 5;000 RPM Large 2-1/4" quill for greater accuracy 3" column diameter for maximum head support 6" stroke for deep hole application Accurate depth stop for precice hole depths 1/2" drill chuck and arbor included Safety collar Style (Type): Variable Drills to Center of Circle (in): 15 Drilling Capacity Cast Iron (In.): 5/8 Drilling Capacity Mild Steel (In.): 1/2 Distance Column to Spindle (In.): 7-1/2 Number of Spindle Speeds: Variable Range of Spindle Speeds (RPM): 400 - 5;000 Column Diameter (In.): 3 Spindle Taper (In. x TPI): MT-2 Spindle Travel (In.): 6 Spindle Distance to Base (In.): 44-1/2 Spindle Distance to Table (Max.) (In.): 25-3/4 Table Size (L x W) (In.): 15 x 18 Table Travel (In.): 16-3/4 T-Slots Number and Size (In.): 2 and 1/2 T-Slot Centers (In.): 5-5/16 Work Table Weight Capacity (Lbs.): 90 Base Dimensions (In.): 20-7/16 x 14-3/16 Base Work Table (In.): 12-1/8 x 11-13/16 Base Slots Number & Size (In.): 2 and 1/2 Motor (HP): 1 HP; 230/460V; 3Ph Overall Dimensions (L x W x H) (In.): 30 x 20 x 71 Weight (Lbs.): 426" JET J-A5818 15" Variable Speed Floor Model Drill Press 230/460V 354551