MaxxMacro® (D/C) 54 Spacer with Performance Pallet mountedMaxxMacro 54 HP Spacer 70MM with Performance Pallet mounted 30MM Ground Height electrode holder Includes proper chip pocket for automated robotic loading Overall Height 30MM Ground Repetition accuracy: within 0. 002 mm Version MaxxMacro 54 Spacer 54MM with HP Pallet mounted 30MM Height, Repetition accuracy: within 0. 002 mm, Precision Ground Material 420C Stainless Block Machined and Hardened (spacer) Pallet 440C Stainless Machined premium pallet Size