Makita VR004GZ 40V Cordless Concrete Vibrator Shaft / Hose (XGT) [Bare] V-groove bit The provided chuck specification states

The provided chuck specification states both 12mm and 1/2"

1 pc WMK1K18 blade

Suitable for contractors

35% lighter than heavy-duty models

5 V (AA) Operating duration

Makita VR004GZ 40V Cordless Concrete Vibrator Shaft / Hose (XGT) [Bare] V-groove bit The provided chuck specification statesIt's what's INSIDE that counts. Makita VR004GZ 40V Cordless Concrete Vibrator Shaft Hose (XGT) [Bare] 2. 4 m (7. 9 ft) 38 mm (1 1 2) 15,500 VPM Cordless Concrete Vibrator 40Vmax XGT Li Ion PDC01 PDC1200 [BARE TOOL] 40Vmax XGT Cordless 38 mm (1 1 2) Concrete Vibrator Compatible with large diameter shafts VR001G series supports a larger vibration part diameter than the current model and transmits vibration to a wider range to improve compaction