M18 FUEL™ 8' Concrete Pencil Vibrator Kit, 2911-21The MILWAUKEE M18 FUEL 8 ft Concrete Pencil Vibrator Kit generates up to 1. 8 peak HP, with no setup and the ability to consolidate 20 yds of concrete per charge. The M18 FUEL 8 ft Concrete Pencil Vibrator generates 1. 8 Peak HP, which is three times more powerful than competitive cordless pencil vibrators for concrete, all on the M18 Cordless System. The POWERSTATE Brushless Motor delivers maximum sustained power and 12,500 VPM for optimal