Minimum tools:

• Steel Ruler/straight edge: Make/cut straight lines

• Marking tool: scratch awl or pen

• Cutting tool: Knife for cutting leather. Some use specialty leather knives. Others use box cutters/ Xacto’s.

• Stitching Divider/ Wing Divider: To make the guide to follow when punching your stitch holes.

• Pricking Irons/Chisels: Different TPI depending on how thick your leather is. There are also different styles: straight, diamond etc. It’ll affect the over all look of the piece.

• Mallet: Plastic or wood. Steel is too hard for the pricking irons and rubber is too soft.

• Leather awl: For punching through leather after using pricking iron.

• Thread: Thickness will depend on the TPI of your pricking irons. This will affect the look of the stitching.

• Needles: Saddle stitching needles come in different sizes depending on the thickness of your thread.

• Glue: There are some specifically made for leather work. Some people just use Barge cement.

• Small Clamps: For keeping leather together as the glue dries.

Extra tools:

• Punches with specific shapes. Circles, semicircles etc

• Edge Beveler: To bevel leather edges before burnishing

• Leather burnisher: To finishs the edges.

• Edge finish: Gum, Beeswax, Tokonole, edge paint

• Lighter: To finish a stitch

• Oils/ conditioners: To maintain the leather

I probably missed some things.

Edit: For the snaps you need a snap setter.