Diamond Coring Rig, Motor HP 2.3, Amps @ 120V 15, No Load RPM 540, Core Bit Cap Concrete (In.) 6, Base Size (In.) 10-1/2 x 16-1/4, Column Dia. (In.) 1 3/4 x 2 1/2, Column Height (In.) 31, Overall Depth (In.) 19, Overall Height (In.) 33, Overall Width (In.) 10-1/2, Tool Weight (Lb.) 51, Single Speed Gearbox And Electronic Overload Protection, Mechanical Clutch Reduces Risk Of Motor Damage, V-Groove Roller Carriage For Accurate Alignment, Includes Single Speed Gearbox And Vacuum Plate Technical Specification Item Diamond Coring Rig Motor HP 2.3 Amps @ 120V 15 No Load RPM 540 Core Bit Cap Concrete (In.) 6 Base Size (In.) 10-1/2 x 16-1/4 Column Dia. (In.) 1 3/4 x 2 1/2 Column Height (In.) 31 Overall Depth (In.) 19 Overall Height (In.) 33 Overall Width (In.) 10-1/2 Tool Weight (Lb.) 51 Features Single Speed Gearbox And Electronic Overload Protection, Mechanical Clutch Reduces Risk Of Motor Damage, V-Groove Roller Carriage For Accurate Alignment Includes Single Speed Gearbox And Vacuum Plate Additional Information Diamond Coring Rigs Husqvarna Coring Rigs w/Base Use for angle drilling. No. 3RDN8 is a single-speed, lightweight unit with V-groove roller carriage for accurate alignment. Nos. 3RDN7 and 3RDN5 are heavy-duty 2-speed units with wheels for portability.