VOLTMAN VOM520102 retractable Block 3 sockets with earthing + 2 + USB switch (Tools & Accessories)
Hang on to find a hole saw 70 mm diameter! Fortunately the system is quite permissive and allows a gap of 1 cm. thus with a 67 at worst, it may end with a file. Otherwise the system maintenance very well. the USB port recharge my problem without devi
