Longruner For Arduino Professional 3D printer CNC Kit, GRBL CNC Shield +UNO R3 Board+RAMPS 1.4 Mechanical Switch Endstop+DRV8825 A4988 GRBL Stepper Motor Driver with heat sink+Nema 17 Stepper Motor

• Latest CH340G CNC Shield expansion board Version 3.0 for Arduino.
• Longruner UNO R3 Board, MCU: ATmega328, USB interface: ATmega16U2 with 1.5m USB Cable.
• 4pcs DRV8825 Stepper Motor Driver with Heat Sinks.
• 3pcs NEMA-17 Stepper Motor 84 oz.in (59 Ncm) 47mm Body 1.8 degree with Mounting Bracket Kit DIY 3D Printer CNC Robot with 3pcs Mounting Bracket and 12pcs M3 Screws.
• 3pcs Endstop Mechanical Limit Switches for 3D printer RAMPS 1.4 with 3Pin 70cm Cable.