This is the Holmes Hobbies TorqueMaster Expert 27 Turn, 540 Brushed Electric Motor. When you need a quality brushed motor, look no further than the TorqueMaster Expert 540 from Holmes! The Expert series features quality construction and a machine wound armature for an affordable alternative that won't break the bank. 

Features:

• Machine-Wound Armature
• Stand-up Brush and 7.5mm Comm for maximizes power and motor longevity
• Gold plated copper brush hood to resist corrosion and provide lowest resistance
• 5mm web 3 slot armature to maximize torque and efficiency
• 1.4mm thick motor can featuring minimal venting and two high-power FB9 wet magnets to maximize torque and efficiency
• Dual ball bearings
• Adjustable timing
• 0.55mm Extra Heavy springs for consistent drag brake
• 729 type soft brushes for high torque and long motor life
• Broken in for immediate installation and use
• Every motor carries a 30 day manufacture warranty to cover factory defects