The Valcia Unground Sheet Metal Round Punch Set of 4 is a tool designed for drilling work on metal sheets, ideal for professionals looking for precision and durability in their tools.
This set includes high quality round hole punches that allow you to make clean and precise cuts in different types of sheet metal.
The punches are made of high-strength materials, ensuring long life and optimal performance even under conditions of intensive use.
In addition, they come equipped with anti-friction washers that minimize wear and make work easier, allowing a smoother cut without excessive friction.
These punches are capable of cutting steel sheets up to 2 mm thick and stainless steel sheets up to 1.5 mm thick.
It is important to note that this recommendation is general, as there are variations in steel and stainless steel types that can affect performance.
Therefore, for harder materials or in cases of doubt, the use of the 56 series is recommended.

Recommendations for use
Oil the sheet metal well before cutting: To facilitate the cutting process and reduce tool wear, it is recommended to apply a layer of oil on the sheet metal before drilling.
Use the correct tool for the type of material: Be sure to use the correct punch for the thickness and type of metal you are working with, following the recommended specifications.
Apply even pressure: During the drilling process, maintain uniform pressure to prevent the tool from slipping or causing an uneven cut.
Make cuts at moderate speed: For best results, it is advisable not to exceed the recommended cutting speed, since too high a speed could overheat the perforator and damage both the tool and the sheet.
Wear proper protection: Always wear personal protective equipment, such as gloves and safety glasses, to prevent injuries when using cutting tools.

Maintenance recommendations
Clean the punches after each use: It is crucial to clean metal debris and dust from the punches to prevent a buildup of material that can affect performance and cause premature wear.
Store in a dry and safe place: After use, store the hole punches in their original case and in a dry place to prevent corrosion and ensure they remain in perfect condition.
Check the condition of the anti-friction washers: Before each use, inspect the washers to ensure that they are in good condition, as their wear can affect the precision and quality of the cut. If necessary, replace them to maintain optimal tool performance.