using a cement bit to drill hard steel

3:22

22:10

6:11

5:18

1:14

5:09

3:44

9:59

6:09

2:48

8:56

کوتاه

7:47

18:56

6:12

6:12

22:02

6:19

12:11

11:54

1:37

1:42

14:58

8:33

2:20

3:11

10:10

14:35

17:43

32:02

7:19

21:42

6:48

4:49

5:50

11:55

7:14

7:52

3:06

4:04