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It uses regular SDS.

The Klutch Rotary Hammer Drill can be used in any position and has an adjustable handle to always give you a proper control of the drill.

SDS drill bits are inserted by pushing the bit into the chuck, and held in place by grooves in the bit. No tightening is needed as each bit is designed to fit the chuck exactly. The open grooves allow a rotation action to be applied, whilst the closed grooves allow the hammer action by using ball bearings to lock the bit in place. It is impossible for the drill bit to slip out of place. They are taken out of the drill via a lock release mechanism.
The bit actually hammers back and forth within the chuck. This is why SDS hammer drills deliver more powerful than regular hammer drills. In regular hammer drills, the whole chuck needs to move, which wastes power and is less efficient.

The Klutch Rotary Hammer Drill does require SDS style bits, and cannot be used with standard drill bits. The drill comes with a few bits, but others can be purchased separately through Northern Tool or can be found locally at most hardware stores and home centers. See link below.

The Klutch Rotary Hammer Drill will accept any bit up to 1/2" with a SDS shank.