Powerbuilt 29mm Ring and Open End Spanner Mirror Polished Inhex Mitutoyo AT715 Linear Scale 600mm Mitutoyo AT715 Linear Scale 600mm IP67 Coolant Proof ProtectionUses an Absolute® electromagnetic induction system to achieve IP67 environmental resistance Detects and outputs the absolute position no reference point setup needed at each power on Abnormal calculations do not occur as a result of electronic noise Very suitable scale for mounting on lathes and milling machines and other machining tools with difficult mounting positions Consult technical manual for overall lengths and mounting details Bits (25mm 1 4in hex): TX8 TX10 TX15 TX20 TX25 TX27 TX30 TX40 TX45 TX50 3mm hex 4mm hex 5mm hex 6mm hex 8mm hex PH0 PH1 PH2 PH3 PZ1 PZ2 PZ3 4mm flat 5 consider these your new go to combination wrenches The box ends also feature Z Drive design that contacts the flat walls of fasteners for better grip and less chance of rounding up to 32mm 1 1 4”