

🔨 Power meets precision—unlock your drill’s hidden potential!
The BOSCH GFA12-H SDS-plus Rotary Hammer Attachment converts your 12V Max Chameleon drill/driver into a compact yet powerful rotary hammer, delivering up to 3,800 bpm and drilling up to 3/8" into concrete. Compatible with Bosch GSR12V-140FC and GSR12V-300FC models, it expands the FlexiClick 5-in-1 system with keyless chuck convenience, ergonomic design, and professional-grade performance for versatile, efficient concrete drilling.

























| ASIN | B0BNKCQNQP |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #74,602 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #127 in Power Rotary Hammers #177 in Power Hammer Drills |
| Brand | Bosch |
| Color | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,054) |
| Date First Available | November 29, 2022 |
| Drill Type | Hammer Drill |
| Drilling Capacity Metal | 9.53 Millimeters |
| Drilling Capacity Wood | 0.38 Inches |
| Finish | Brushed |
| Included Components | (1) GFA12-H SDS-plus® Rotary Hammer Attachment (1) Side Handle (1) Depth Gauge |
| Is Electric | Yes |
| Item Package Quantity | 1 |
| Item Torque | 265 Inch Pounds |
| Item Weight | 2.28 pounds |
| Item model number | GFA12-H |
| Manufacturer | BOSCH |
| Material | Blend |
| Maximum Power | 850 Watts |
| Maximum Rotational Speed | 480 RPM |
| Maximum Torque | 3.8 Newton Meters |
| Number of Speeds | 1 |
| Part Number | GFA12-H |
| Pattern | Solid |
| Power Source | Battery Powered |
| Product Dimensions | 5.6"L x 4"W x 8.75"H |
| Shape | Rectangular |
| Size | One Size |
| Special Feature | Keyless Chuck |
| Special Features | Keyless Chuck |
| Speed | 3800 RPM |
| Style | Rotary Hammer Attachment |
| UPC | 000346659238 |
R**.
You NEED This
Pro user here. I own a home services company. This is an amazing tool. For most regular tasks it has ample power. I love the soft start when trigger is pulled and the different drill accessories are incredibly useful. ULTRA quie, too. Easy to change heads for different tasks and small but very solid feeling...not light and plasticy junky feeling. Great for lighter drilling and driving. I have bigger, stronger drills and impact drivers for the heavy duty tasks. My hands are a little arthritic now and this little guy allows me to do more without resting (removed 30 outlet and switch covers for a painting job at twice the speed of normal). I wish it had a better quality case that had moulded areas for each accessory head to keep everything in place, but that is a minor gripe. Just bought a second set for my other business! BUY it. You won't regret it. I may need to buy a 3rd one for my son's tool kit (he's 10). Hope this was helpful!
Z**P
Handy drill - good quality so far.
I like the different adapters on this drill - I don't need them often but when you do, they really make a project go more smoothly/easily. Good quality. Battery life is ok for a "hobby use" which is my use case. The batteries come in larger capacity and I'd probably get a 4 ah if I were doing professional work. I've got 2 smallest batteries that are light which is my preference. The storage case is "ok" but not using it that much to be honest. It has decent torque. My milwaukee M12 drill is probably a bit more powerful but not something that matters much - I am more interested in the flexibilty of the attachments. The right angle one is my favorite. Used that several times and it saved the day. I'd buy it again.
S**T
Great all around drill that will last
This has become my go-to drill for just about any house project, it's compact and light weight, the LED on the front illuminates whatever you are doing, and its very powerful for the size. Paired with the Bosch screw and drill bits, (which can fit with all the attachments in the included carrying case) makes changing bits very fast. I have owned for over 6 years and had no issues with this set, both of the included batteries still work great and hold charges (even without use) for months so its always ready to use. Just bought a second one for my parents as their old heavy drills were becoming hard for them to use.
M**N
Great high quality tool!
By far the tool I use most. More than enough torque to do most jobs. Small and light enough to get into tight spaces and not be tiring when using for several hours. I like the different heads, makes switching between drilling and driving really fast. Trigger and ergonomics really well done, great if you have kids you want to get into woodworking
D**A
Initial impressions - UPDATED
I've just recently received this kit and only have initial impressions so far. I will update over time. The tool seems well made and surprising heavy for how small it is; it feels like a quality power tool, only very small. There's obviously more metal than plastic inside. The variable speed trigger is linear and allows good speed control throughout the range. You can run the bit very slowly for precise control when needed. I will likely use the tool with hex shank bits most often, and without any adapter. The small adapter with the locking hex collar is unnecessary unless worried about a bit pulling out of the magnetic holder in the bare head. (Maybe when working on a ladder) It's likely strong enough for most hex bit drilling/driving. The adapters connect with a positive, but slightly stiff rotation and click. I can't imagine the adapters coming loose while in use. As others have said, the case is the bare minimum they could provide. It's almost like something they had from another product and decided to include it here too. Marginal, at best. I did notice a couple of quirks: The battery power meter above the trigger has a soft glow that continues for several minutes after the meter is off. It's like an LED is still lit very dimly. It's hard to see in bright light and it does eventually go off. I'm not sure if that's by design or a bug. It's not worth sending back for this since it may be normal. It would be great if someone else could check theirs. Also, the two supplied battery packs slide into the handle with a different feel: one is snug; the other fairly loose. Both lock securely. Again, not a big deal, but a little variation in build quality. I'll update as I use the tool more. I have several corded and 18v Bosch power tools and expect a good experience based on my approx. 10-year history with this brand. UPDATE 6/25: Wow, already 4 1/2 years, and this tool has helped me with so many tasks and projects. It's handled everything from drilling, to driving, to pocket holes, to sharpening my mower blades, small fixes and project builds and has been a great tool. I've had a need to use every head except the right angle. I like the adequate torque for driving fairly large screws and the higher speed for drilling pocket holes. I've experienced zero failures, and the batteries still seem to function very much like new. There was one time when the clutch collar would not rotate past mid-point and I thought there was a problem, but when I blipped the trigger, it again functioned as normal. Apparently, there was some gear or cam that was aligned in an odd spot and rotating the shaft corrected the misalignment. It has never happened again. I'm very much impressed with this little drill/driver chameleon. In fact, I'm thinking of getting a second one just for those times when I'm drilling pilots and driving many screws and have to keep swapping bits. Perhaps that's just an excuse to get another one?? The price has fallen substantially since this was a new tool, so why not. Highly recommended.
A**Y
An amazing drill
This drill is amazing! I work in aviation maintenance on small planes and this drill fits easily into my hand and the attachments make it easy for me to get into tight spots. The weight of the drill is very balanced and I can use it for hours without causing wrist strain. I am female and have smaller hands than my male coworkers but everyone in my shop says the drill feels nice in their hand. The battery life is great, between the 2 batteries it comes with I never have any issues with running out of battery. The only thing is after about a year of using the drill (and regularly changing the attachments), I have had the attachments get stuck a few times. If you are drilling and the drill gets stuck/jammed, it is really hard to take the attachment off afterwards. For my work, the attachments (especially the 90) make my life so much easier so I don't mind the occasional jam. I probably use this drill for about 5-20 hours a week and it has held up well to the abuse I've put it through. I think it's reasonably priced and when my coworker hands me a different drill for a quick thing I am always shocked on how bad it feels. The only reason I took one star off is because of it getting stuck sometimes. I highly recommend this drill for anyone, and one of my coworkers actually bought this drill to replace his.
F**D
Preis aus USA unschlagbar (ca. 180 € inkl. Gebühren). Ca. 2-3 Wochen Lieferzeit (erst kurz vor Ablauf losgeschickt). Kein Unterschied zum GSR 12V-35 FC festgestellt. Inhalt sah zwar nicht zu 100% ungeöffnet aus, ist allerdings für ein Werkzeug ok. Ladegerät kann nicht verwendet werden da 110V. Akkus sind zu meinem EU Ladegerät und Bosch 12V Geräten 100% kompatibel.
S**O
Great little installation drill/driver. Perfect for assembling cabinets and general drilling/driving. Beware the charger is for the USA and not AUS.
F**A
Definitivamente le exigí un poco, con una broca de 5/16 le costó un poco poder realizar la perforación de 2" en velocidad 2 tuve que cambiar a velocidad 1 para no forzar el motor (hice 10 perforaciones así), se desempeña muy bien pero definitivamente recomiendo usarlo como maximo con brocas de 5/16 para abajo, no recomiendo usarlo mucho en su capacidad maxima de 3/8 salvó que sea en casos muy ocasionales, ya mejor usar un GBH
C**S
Does not come with the belt clip like the european version
A**R
El taladro es excelente, viene con varias cabezas intercambiables. Hasta ahora lo he usado para perforar madera y block, y la verdad es que ha funcionado de maravilla. No presenta problemas a pesar de no tener función de rotomartillo.
Trustpilot
2 weeks ago
1 month ago