• This Electric Surge Sander needs to be used with SurfPrep's External Power Supply
• This is an excellent option for an operator who already owns SurfPrep's 3" x 4" electric tool
• The power supply will work for both sanders
• It is similar in design to the 'internal power supply' Surge model with a fast rate of cut and ergonomic body
• This is low profile, power packed and energy efficient
• Operational speeds of 7,000-9,000 and 10,000 RPM for customized finish
• Includes hook and loop backup pad