SDS Drill Bits

SDS drill bits are drill bits designed to be used with SDS rotary hammer drills. SDS stands for Slotted Drive System, which means that the drill bit has slots along the shank that create a stronger connection with the drill and allow the bit to move back and forth during the hammering action. SDS drill bits are mainly used for drilling into hard materials like concrete and stone.

There are different types of SDS drill bits, such as SDS Plus, SDS Max, and SDS Top. The main difference between them is the size and shape of the shank and the amount of power they can handle. SDS Plus is the most common type and can fit into any SDS drill. SDS Max is larger and more powerful but requires a compatible drill. SDS Top is a rare type that has a different slot configuration.

There are different types of SDS drill bits based on the size and shape of the shank and the type of material they are used for. The most common types of SDS drill bits are:

• SDS Plus: These have a 10mm shank with four slots that hold the bit securely in the drill. They are suitable for lighter-duty work and smaller diameter holes in masonry and concrete.
• SDS Max: These have an 18mm shank with five slots that can handle more torque and force. They are suitable for heavier-duty work and larger-diameter holes in masonry and concrete.
• SDS Top: These have a different slot configuration and are less common. They are compatible with some specific drills and chisels.

There are also different types of SDS drill bits based on the shape and design of the cutting edge. The most common types of SDS drill bits are:

• Flat-head: These have a standard pointed tip that can drill into wood and soft materials.
• Spade-head: These have a wide, flat tip that can drill into hard materials like masonry and concrete.
• Chisel-head: These have a sharp, angled tip that can chisel and break through hard materials like masonry and concrete.

To use SDS drill bits, you need to have an SDS drill that has a compatible chuck and holder. The steps to use SDS drill bits are:

• Choose the right SDS drill bit for the material and the hole size you want to drill. There are different types of SDS drill bits, such as SDS Plus, SDS Max, and SDS Top, as well as different shapes of the cutting edge, such as flat-head, spade-head, and chisel-head.
• Set the drilling speed on your SDS drill to the appropriate level for the material you are drilling. You can also select the mode of operation, such as rotary only, rotary with hammering, or hammering only.
• Secure the workpiece with clamps or a vice if possible, to prevent it from moving or slipping while drilling.
• Insert the SDS drill bit into the chuck of your SDS drill and ensure that it is securely locked in place. You can do this by placing the shank of the bit into the holder, rotating it slightly to align the slots until you can push the bit in. The spring-loaded chuck will secure it without the need for additional tightening.
• Monitor the drilling progress and adjust the pressure and speed as needed. You can also use a depth stop or a tape measure to ensure that you drill to the desired depth. If you encounter any resistance or obstruction, such as rebar or aggregate, you can increase the force or switch to hammering mode to break through it.
• Remove the SDS drill bit from the chuck by pulling it out or using a release mechanism if your drill has one. Clean the bit and store it properly for future use.