Comparison : Item # 421-600573420, 1/2" 2-Speed Drill 7.7 AMP
Item # 421-600574420, 1/2" 2-Speed Drill 9.6 AMP
Item # 421-600580420, 1/2" High Torque Drill 6.7 AMP
Item # 421-600635620, 1-1/4" Electromagnetic Drill Press
Item # 421-600636620, 2" Electromagnetic Drill Press