Steelmax D4X Features ◦Multifunction Mag Drill with maximum hole cutting up to 4-5/16" (110 mm) diameter or drilling holes up to 1-7/8" (47 mm) diameter in 3"(76mm) thick steel . ◦Morse Taper No. 4. ◦High Torque 1650 Watt Motor. ◦Four speed mechanical gear box. ◦Motor overload protection system. ◦One piece gearbox housing and slide. ◦Semi-automatic gib backlash adjustment (patent pending) enables simple, fast and correct adjustments without any expert knowledge or experience. ◦Replaceable spline at the end of armature shaft eliminates laborious and expensive armature maintenance. ◦Compact design allows drilling very close to vertical surface. ◦Magnetic Field Shape Control system (MFSC) which provides maximum holding power on thin material. ◦Magnetic Power Adhesion Control module (MPAC) detects an adequate adhesive force of electromagnetic base for safe operation.