ETA EL506 RAV GCSA Electric Folding Positioning Smart Reaction Arm Standard Duty Right Angle Vertical Angle Bosch Pneumatic Straight Screwdriver 0 Banner 812797 Bosch Pneumatic Straight Screwdriver 0 Smart arm with X & Y position feedback using 12 bit Analog 4 to 20 mA absolute encoders for VERTICAL fastening with customer's Right Angle DC Tool includes RAV TH SA (Right Angle Vertical Tool Holder for Smart arms) with set screw adjusted handle position Smart arm with X & Y position feedback using 11 bit parallel Gray Code absolute encoders for VERTICAL fastening with customer's Right Angle DC Tool includes RAV TH SA (Right Angle Vertical Tool Holder for Smart arms) with set screw adjusted handle position ETA EL506 RAV GCSA