SDS Drill bit

[nysk2008]

Hi all,

I have recently bought an SDS drill which says it can take bits up to 13mm (keyless chuck)

I am probs being very thick but if I buy bits online who do I know if they will fit? I was looking at a set in tool station but the guys there did not know.

Can anyone let me know if 13mm will cover pretty much all bits (I was looking at a set of 12, 16 and 24mm bit)

Any assistance would be really great and sorry if it is a bit of a school boy question.

 

[andyg0507]

hi mate they will say sds on them, or there will/should be a description of what sort of drill there used for.

if you look at where the bit enters the drill/chuck you will see 2 slight notches in it.


hope this helps.

 

[nysk2008]

Excellent, cheers for the response - can I assume all SDS bits will be less than 13mm capacity where the bit enters the chuck? Sorry if I am going round in circles. Ta

 

[kingkenny]

the shank is the same for all sizes.

 

[WHPES]

I think you are getting confused with SDS (Special Direct System) and a keyless chuck.

Many SDS drills come with a keyless chuck as a means of using the drill with wood boring bits, holesaw kits etc, and these will take up to 13mm shank. The keyless chuck has an SDS shank on it which fits into the SDS chuck permanently mounted on the drill. Think of this keyless chuck as a form of adapter.

For your masonry drills, SDS masonry drills come with the SDS shank (10mm diameter) which goes straight into the SDS chuck on the drill (if the keyless chuck is on, you have to take the entire chuck off). With an SDS drill, you would normally only use SDS masonry bits.

To release an SDS drill bit from the chuck, there are two main ways - on some drills, you pull the chuck collar back to release the bit. On others, you twist it.