Beta 720/C13 long-reach XZN triple-square socket bit set, 13 pieces M4-M18. 100mm length for recessed fastener access in engine bays.
Beta 720/C13 long-reach XZN triple-square socket bit set, 13 pieces M4-M18. 100mm length for recessed fastener access in engine bays.
| Part | 720/C13 |
| Profile | XZN triple-square (12-point star) |
| Size | M4-M18 long |
| Drive | 100mm / 1/2" |
| Material | Cr-V + black oxide |
| Standard | DIN 3121 |
| Uses | VW/Audi/Porsche engine bolts (head/main/rod/flywheel), BMW/MB driveshaft + suspension, heavy-truck driveline |
| Material | Cr-V + black oxide |
| Primary standard | DIN 3121 |
| MOQ | 1 |
Triple-square (XZN) profile patented by Volkswagen for high-torque fastening. Do NOT use 6-point hex or 12-point spline in XZN fasteners — will strip. Accurately fits recessed-hex + flush-top socket-head variants.