Scalpel Handles are tagged with numbers to denote the size and type of the blades that are compatible with the handle. The Scalpel Handle #3 is usually used with smaller blades that have a curved cutting edge, like the #10 or #15 replaceable surgical blades. It can also be with the pointed #11 blade. These handles and blade work well for microdissection or fine surgeries when making precise incisions.
The Scalpel Handle #4 is a little larger and heavier than the #3. It gives you more control and the ability to apply more force. The #4 scalpel handle is often used with larger blades like the #20, #21, #22, #23, #24, and #25 blades. These blades have a similar shapes as the blades used with the #3 handle, but the blades are larger in size.
A Scalpel Handle #7 is a smaller handle designed for precision and fine detail work. It is commonly used in ophthalmology, microdissection, and delicate procedures.