I see most brands make two types of SDS drill, but why? what's the difference between a hammer drill and a rotary hammer? what's the difference between these two types, is it just the power? does the first one do the same thing as the second?
>>2969818The one on the left is obviously smaller and probably hits with less joules of impact energy. Also looks to only have hammer drill and drill modes. One on the right is obviously bigger, probably impacts with much higher joules of impact energy, has drill only mode, hammer drill mode, and hammer only mode, and probably takes the larger shank sds bits than the one on the left.
>>2969819So in conclusion the right one will more than likely stomp the shi t out of the left one when doing heavy concrete drilling.
>>2969818The mechanism in them defines the primary functionThis video explains it perfectly.https://www.youtube.com/watch?v=dPYVDz5SSlwLeft drills good but hammers poorly. (hammer Drill)Right hammers but drills poorly. (rotary Hammer)
>>2969819what about these two?many of the left variety seem to have 3 functions as well as the right; hammer only, drill only and hammer drill. will it just be weaker? or is the mechanism fundamentally different and going to give different results?
When to Choose a Hammer DrillSmall Projects: Ideal for drilling holes smaller than 1/2 inch for anchors or screws.Versatility: Most hammer drills have a "drill-only" mode, allowing them to function as a regular drill for wood or metal.Occasional Use: Best for homeowners and DIYers who only occasionally encounter masonry.Budget: Generally more affordable, ranging from $50–$300. When to Choose a Rotary HammerLarge Holes: Essential for drilling holes 1/2 inch to 1 inch or larger in solid concrete.Demolition: Most feature a "hammer-only" mode for chiseling tasks like removing tile or breaking small concrete slabs.Efficiency: It does most of the work; you don't need to push hard. A rotary hammer can drill through concrete up to 5x faster than a hammer drill.Professional/Heavy Duty: Necessary for construction professionals or large projects like setting foundation bolts.
>>2969822>>2969824so what i want is on the right. noice, thankyou anons.have a photo of some cool industrial stuff in gratitude.
>>2969818Right = weight moved closer to chuck = nicer for drilling/hammering downward, usually more power, but less nice for walls because you need to be physically closer to the drill and the debris when going horizontalLeft one does not have hammer only mode which is essential for removing tiles and demolition, but is a lot easier to align and keep straight when drilling deep holes horizontally.
>>2969818question: is this a rotary hammer?https://www.screwfix.com/p/skil-rh1u1770ga-3-1kg-electric-sds-plus-rotary-hammer-drill-220-240v/233kg#product_additional_details_containerbut it is just in the form of a hammer drill?
>>2969843im not quite sure what youre asking. thats a rotary hammer. you can use it to hammer or hammer drill. same stuff as the rotary hammers in OP.
>>2969847nah it;s just that is looks like a normal electric drill, rotary hammers usually being in this form factorhttps://www.screwfix.com/p/skil-rh1u1781gb-5-3kg-electric-sds-plus-rotary-hammer-drill-220-240v/755kg#product_additional_details_container
>>2969818I have a corded bosch one like the one on the left and a cordless metabo hpt one like the one on the right. The right version is more compact and easier to keep in my tool box and drilling when you have less space. Otherwise i have no idea of the differences.
>>2969818Hammer drills are more suited to drilling. They're lighter and easier to handle, and usually spin faster. The hammer function is really only there for some added versatility when you need it. Key operand word being "need". Rotary hammers are just straight-up better for anything you'd be using the hammer drill function for. And, unlike a lot of tools where the "pro" version is noticeably-but-not-amazingly-better, it's not just a little bit better. Even a light-duty rotary hammer will put a hole through concrete or stone roughly an order of magnitude faster than a good hammer drill, unless you're going through something very soft or easily broken up (like brick or cinder block).
>>2969818left: 2,6 joule hammering powerright: 2,1 joule hammering powersize and price isnt all, i got the left and it does my jobs with some to spare. for drain pipe i have used it up to 35mm in thick concrete, takes a battery but its more powerull than your dads old 220v. for car repairs it eats through spot welds like they wherent there. right might have dust retrieval or something i couldnt find thoose specs easily.
