No. You have to adjust the speed in line with the material properties.
The softer the material, the higher the speed. The harder the material, the lower the speed.
As materials differ significantly in terms of hardness ratings, you should always drill at a speed correctly adjusted to the material and drill bit diameter.
The technical literature has detailed application tables. The speeds specified here in our tables should be treated as simplified guidelines with which you can achieve good results when using hand-operated machines.
Different speeds may sometimes apply to specialist drills and core bits. Here, it is best to use the values specified on the packaging or in the operating instructions. If the speed of the drill being used cannot be precisely specified, then you should use the closest value.