Sales link: 

https://www.miniware.com.cn/product/mt34-mini-multifunction-diy-set/

This multifunction handle can be used by both ends to fit for different usages. It can be assembled with bits as a screwdriver, and also with engraving blades and mini wrenches; while connected with the extra bit connector and the drill bits, the handle can become a drilling tool.  An extension bar is stored inside the body of the multifunction handle, which can be assembled to lengthen the handle for places hard to reach.

Package Includes:

Mini Multifunction Handle * 1                H4x45mm Bits *10

H4x60mm Extension Bar * 1                 H4 Mini Wrenches *6

Drill Bit Connector * 1                          Mini Drill Bits *5

Part Box *1                                         Blades *9

Size: 185x115mmx48mm                  Weight: 466g

Handle Material: aluminum alloy           Handle Length: 125mm

H4x45mm bits: 

H4 mini wrenches: M4, M4.5, M5, M5.5, M6, M7

Mini drill bits: 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm

Blades: FK, #N2, #21, #48, #17, #11, #1, #16, #3