Description
Highlights of the Bosch Rotary Hammer’s Design and Build
The Bosch RH745-RT 120V 13.5 Amp SDS-max 1-3/4 in. Corded Rotary Hammer (Renewed) is a solidly built machine, and the metal construction through the working end is what an SDS-max tool needs to survive continuous percussion. The listing puts it at about 28.4 pounds, which is heavy even by the standards of the class. The white color marks it out as a renewed unit rather than the usual Bosch blue. The features that matter more are the ergonomic handle and the variable speed dial, which sets the working speed rather than leaving it entirely to trigger pressure. The Vario-Lock function rotates the chisel into 12 positions, which lets the chisel angle match the work rather than the wrists.
Positive Features That Make It Worth Considering
The performance case rests on a 13.5 amp motor rated at 7.6 ft.-lbs. of impact energy, which is enough for demanding concrete and masonry drilling. Both rotary hammer and hammer-only modes are provided, so the same tool drills anchors and chisels without a second machine on the van. Variable speed control covers the range from a careful start to full demolition output. The carrying case keeps the tool and accessories together, which matters more on a heavy tool that has to be moved between jobs. One accessory note: the listing mentions a chuck key, which does not correspond to anything on an SDS-max tool and looks like inherited listing data rather than a real inclusion.
- Strong impact energy for efficient drilling and chiseling
- Two operational modes for versatile use
- Vario-Lock function enables optimal chisel positioning
- Variable speed dial for precise control
Limitations That Are Hard to Ignore
The weight aids stability and works against endurance, particularly for anyone not used to a tool in this class. The corded design limits mobility next to cordless alternatives, and on a jobsite without convenient power that is a real constraint rather than a minor one. The tool is loud, as percussion tools are, so hearing protection is mandatory rather than advisable. The renewed condition is the other consideration: a refurbished tool has had a prior life, grading varies between sellers, and warranty coverage is usually shorter than on new stock, so the return terms deserve a careful read. Anyone who would rather not take that on can buy the standard RH745 new instead. Finally, the size and bulk make it a poor fit for tight spaces and overhead work.
- Hefty weight can cause fatigue over long periods
- Corded design limits portability
- Noise level requires hearing protection
- Renewed unit condition may cause concerns
Performance and Versatility in Everyday Use
Across the jobs this tool is built for, drilling through concrete block and chiseling out old tile, the specification is well matched to the work. The SDS-max bit system handles bit changes without tools, which keeps a tile removal job moving instead of stopping at every change of chisel. One figure in the listing should be ignored: it quotes a 1.75 inch capacity in wood and metal, which simply repeats the tool’s 1-3/4 in. SDS-max designation. An SDS-max rotary hammer is a masonry tool, and that number says nothing useful about boring wood or steel. The variable speed function is not decoration either, since starting a hole slowly is what stops a large bit wandering off the mark. For work that is breaking rather than drilling, a dedicated tool such as the Bosch 11321EVS demolition hammer is the better instrument.
Value Assessment: Is This Rotary Hammer Worth the Investment?
On features against price, and particularly at renewed pricing, this hammer offers real value for money. Compared with other corded rotary hammers in the same power band it competes well on impact energy, with the Vario-Lock as a useful extra. Cordless tools buy freedom at the cost of sustained output, which is the trade a corded 13.5 amp motor exists to avoid. The case and accessories are included rather than added on. For a buyer who values power and durability over portability, it is a sensible way to spend the money, and the wider rotary hammer selection shows what the same budget buys new and in smaller formats.
Product Comparisons with Other Rotary Hammers
Set against other well known rotary hammers, this model leads on impact energy and build and trails on mobility because of the cord. DeWalt’s cordless options offer freedom at the cost of continuous power and often carry their own weight penalty once a large pack is fitted. Makita’s hammers are close on torque and speed control, though the Vario-Lock is the friendlier system for repositioning a chisel. The clearest gap is vibration control, which several rivals now include as standard and this tool does not: within Bosch’s own range, the RH850VC with Vibration Control is the direct answer for anyone who runs a hammer all day. For pure corded drilling and chiseling power, this one remains hard to fault.
Ease of Use and Handling
The tool handles predictably for its weight. The ergonomic grip is shaped to hold down hand fatigue, and the balance keeps it from being front heavy, which is what makes a hammer this size manageable at all. The variable speed dial is placed within reach of the working hand for adjustments without stopping. Overhead use is possible but not comfortable, and very tight spaces remain a problem given the overall dimensions. The carrying case is sturdy and large enough for the tool and its accessories, which keeps transport straightforward. Buyers who need still more capacity in the same corded SDS-max format have the Bosch RH1255VC as the next step up.
Durability and Long-Term Reliability
The metal construction and the size of the motor both point to a tool specified for sustained demanding work rather than occasional use. On a renewed unit, condition depends on what the refurbisher did and how the tool was treated before that, so the seller’s grading and warranty are the two things worth checking before buying. Bosch’s record in this class is the reason renewed examples hold their value, though regular maintenance still decides how long any percussion tool lasts. The metal exterior resists the knocks that come with site work and keeps its professional appearance through them, which is the mark of a tool built to be repaired rather than replaced.
Drawbacks Worth Considering Before Purchase
The negatives deserve equal weight in the decision. The weight and the cord will rule this tool out for anyone who needs a light or battery powered option, and no feature elsewhere on the spec sheet compensates for that. Noise levels make hearing protection compulsory. The renewed status will deter buyers who want new stock with full warranty cover. The Vario-Lock is a genuinely good feature, but the absence of vibration control means long sessions cost more in hand fatigue than they would on a rival that includes it. Those points, more than the headline power figures, decide whether this hammer suits a particular buyer.
- Heavy and less portable due to cord
- High noise requiring safety gear
- No advanced vibration control
- Renewed product may lack full warranty coverage
