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What Rotary Hammers Work with Which SDS Drill Bit

Which SDS bit should I use?

When working with masonry, both SDS Plus and SDS Max tools are equally capable of getting you the results you want. An SDS Max bit is can be hard hitting and powerful tool to get the job done. But may not have the finesse on finer, closer to the edge drilling.

You now know all the key factors involved with SDS drill bits and selection. The most important takeaway is to consider the task at hand and using the facts we’ve outlined to make your choice. And if you’re going in blind to a job, then it’s better to be overprepared than underprepared on site. In many cases, it might mean an easier drilling process and faster result; and that is never a bad thing.

We created this tactical SDS bit guide to help you choose the best SDS-Plus and SDS-Max bits on the market. And if you have any questions about the facets raised in this article, reach out to us. One of our customer service or sales representative will be happy to handle your question and drill down to the product you need to get the job done.

Are all SDS Drill bits compatible with a Rotary Hammers?

The bad news is no, you’ll need a different power tool with an SDS chuck for different bits. Older SDS bits will fit into the same drill as SDS Plus bits, but will require a SDS Plus hammer drill. And SDS Max bit require there own SDS Max hammer drill. The size of the shank prohibits each bit being compatible with another rotary hammer drill. So it’s important to think about your task at hand. Look at the job and consider:

What am I drilling into? Is it harder concrete or maybe stone?

What size hole is required? What depth do I need?

Regardless, whether it’s an SDS Plus or SDS Max bit, when it’s is inserted into a hammer drill, all you have to do it just insert it and it will stay put with its shank design preventing the bit from wiggling loose. Rotary hammer drills fitted with an SDS chuck are spring loaded. Its as simple as insert, twist, and it’s secure. As it was designed by Bosch, back in 1975.

The splines on the side of the SDS bits allow for movement along the shaft, enhancing the hammering action. As the bit turns and gouges the concrete, the pulverising movement pushes the SDS bits further into place.

Power drills with the hammer function are capable for use in softer masonry materials like brick or hollow block. But their 3 jaw chuck is their Achilles heel. If a power drill encounters resistance while using a smooth shank drill bit, the risk of the drill bit slipping increases. You’ll lose traction and more importantly, time. As a tradesperson, use the right tool for the job. Rotary hammer drills.

The biggest take away when choosing your rotary hammer is speed and the amount of hammer actuations per minute. It can mean the difference between a two minute job that turns into a 15 minute job with an underpowered drill.

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