Upgrade one:
[High and low speed two-speed adjustment, work sign-in benefits]
1st gear is for resistance, suitable for screw disassembly; 2nd gear is high-grade, suitable for flat drilling
Upgrade two:
[15+1 torque adjustment according to work needs]
5-7: Elastic screws
10-13: Wood
16-19: Tile
22-25: Steel
(Tips: When installing the dismounting screws, adjust the torque to the low gear (1-3). If the torque is too high, the bit and nut will be damaged, and the screw will pass through the board.
Upgrade three:
[Humanized switch design, easy to use]
Infinitely variable speed switch: It is easy to adjust the speed by pressing the switch light and heavy.
Upgrade four:
Porous excellent heat dissipation, long-term operation does not burn machine
Upgrade five:
Waterproof and fall-proof, pamper your careless