What Is a Reduced Shank Drill Bit

Reduced-shank drill bits have a shank with a smaller diameter than their cutting head. They can drill large holes while still being compatible with standard sizes of drill chucks on handheld drills. Reduced-shank drill bits are used in maintenance and repair applications.

What are reduced shank drill bits used for?

Such a drill bit is called a reduced-shank or blacksmith’s drill. For example, this allows a 1⁄2-inch (13 mm) bit to be used in a pistol-grip drill’s 3⁄8-inch (9.5 mm) chuck.

Can I use SDS plus in normal drill?

Can I use an SDS drill bit in a normal drill? You should not use SDS drill bits in a standard drill. The chuck on a standard rotary or hammer drill is not designed for SDS drill bits. Standard bits can come loose, damage the drill and affect the quality of your work.