#1. Is a groomer, The edge of the center piece follows the contour of the leather
The arm looking thing is the groover
Set it at 1/4" from the edge to the center of the arm
Now drag it along the contour of your leather and the arm will cut a grove
Now both pieces of leather have a channel in the EXACT same place
Next
Find a corner. This is your starting point
In the corner where 2 grove lines intersect
Place your 6 time chisel in the intrrsection
Hit it
Now move your chisel and set it down with the first time in the last hole
Do this every time
So what you have is a 6 tine chisel that makes 5 holes each time
Now, listen up, count the holes. Using a 6 tine you count by 5s
So. You have 18 holes (example) then a turn. You used your chisel 3 times
That is 15, Back the chisel up and repunch 3 to reach the corner
On the exact same thing to the piec of leather that is going to be sewn togather
Turn corner, punch holes to next corner
Count holes
Punch other piece same same
#2 looks to be a set tool need to se end to tell you what it sets
#3 is a speedy stitcher
I will find you a video
#4 the little round thing is an anvil. For setting rivets and snaps