Not understanding drill bits

[hamd01]

So I'd appreciate some help from anyone who knows about drills and drill bits. I've ordered a drill bit that 600 millimeters long but it doesn't have a circular end so it won't fit securely into my drill. The chuck doesn't tighten as well as it does with a fully circular drill bit.

You can see in a photo the drill bit that doesn't fit securely on the left and an example of one that fits perfectly on the right.

I can understand that the drill bit simply isn't going to fit but I've had this a couple of times in the past and haven't been able to find an answer.

It's obviously time to upgrade my drill but can anyone tell me what type of drill I need to buy in order to be able to accommodate both the types of drill bit in the photo?

 

[Alec_t]

The bit with the fluted end is for an SDS drill.

 

[Rodders53]

You appear to have bought a SDS drill bit

SDS: The original German was "Steck-Dreh-Sitz" meaning Insert-Twist-Stay. As the bit evolved, it has come to be known as a Slotted Drive System or Slotted Drive Shaft.

Special drills use them for a percussive hammer action with/without rotation of the 'bits'. https://www.machinemart.co.uk/c/sds-sds-and-sds-max-drills/ has some examples

 

[Nige F]

Interesting about the German origin . Like the beetle KDF vagen Strength through joy, A.H's slogan

 

[^woody^]

You can carefully align it in a chuck and it'll be near enough.