I used to use a heated nail.
Simply, hold it with pliers, and heat its tip up for a minute or so on the stove fire.
Keep your belt stretched firmly (you can hold one side of the belt under you foot, and the other side with one of your hand, while the other hand is holding the pliers) and point the nail to the spot you want to make a hole, and push into the belt.
It makes a small regular hole very easily.
I see many sources on the web mention the nail with a hammer.
No need for a hammer, heated nail held firmly with pliers, can make the hole you want.
lifehacks.stackexchange.com/users/2443/Hawk
Use a power drill with a small drill bit the size of the hole you want.
Put a piece of scrap wood under the belt first.
After the drill bit penetrates the belt, move the drill up and down to clear out the chaff from the edges of the hole.
(if you don't own a drill, you could go to your local home depot - they often have test drills...be discrete....
or...somewhere near you a neighbor probably has one)
lifehacks.stackexchange.com/users/9683/ssaltman
Careful usage of a sharp pointed knife can easily cut you another hole in your leather belt.
Mark out where you want the new hole, and put the knife at the marker and rotate gently.
Soon you'll have your extra hole.
In fact most thingies with a sharp point can be used if you are in a real pinch.
I.e. one end of scissors, kitchen knives, screw drivers, or even a key if you are a little persistent!
Of course the sharper the better...
lifehacks.stackexchange.com/users/4490/holroy
A lot of shops will punch one for you.
You could go to a shoe repair shop or a menswear shop and ask if they can punch the hole for you.
lifehacks.stackexchange.com/users/4244/dwjohnston
i used a screwdriver bit in an electric screw driver.
worked like a charm :)
lifehacks.stackexchange.com/users/17591/sarit
Melted a screw banged it in tongue belt with a hammer holding the screw with garden shears that don't work and done deal......
my husband thinks I got the neighbour who is a pro DIY to do it !!!!!!!
lifehacks.stackexchange.com/users/22173/Leigh
For many years, I've used the awl point found on many multitools ( vis. Leatherman) and multiblade pocket knives.
I just use pressure on the belt's metal tongue to make a mark, then take off the belt and drill through with the awl point by rotating back and forth.
Once it pierces through, a few additional rotation strokes will enlarge the hole enough for the tongue to push through readily, and you're good to go.
lifehacks.stackexchange.com/users/9830/Zeiss Ikon
I generally use the pointed end of scissors for punching a hole into my belt.
Once, it manages to pierce to the other end, start rotating it, while simultaneously drilling in; until the hole of desired size(or diameter) is punched in.
If the scissors isn't sharp enough, then using the hack suggested by @Hawk
lifehacks.stackexchange.com/users/8195/Dawny33
I don't want to invest in a leather hole punch, so how could I add an extra hole (or some other solution)?
Adding a belt hole without a leather punch
lifehacks.stackexchange.com
<substitute-tool><clothing>
lifehacks.stackexchange.com/questions/9484
lifehacks.stackexchange.com/users/7899/Broots Waymb
There are a number of different ways of punching a new hole in a belt, but one simple method involves using a heated nail. Another effective method uses a power drill with a small drill bit or an electric screwdriver. A sharp knife, pocket knife or even a pair of scissors can also be a good way to do this. Alternatively, you could go to a shoe repair shop and ask them to punch the hole for you. The options are to use a heated nail and pliers, a power drill, a sharp pointed knife or scissors, an electric or manual screwdriver, the awl point on a multitool or go to a shoe repairer and ask them to do it.
Use a heated nail, held in place with pliers. Use a power drill with appropriate drill bit and place a scrap of wood beneath the belt. Use a sharp pointed knife, scissor blade, kitchen knife or screwdrivers. Go to a shoe repair shop or a menswear shop and ask them to punch the hole. Use an electric screwdriver. Use the awl point on a multitool such as a Leatherman. Use the pointed end of a pair of scissors in a rotating movement.