This here is a little writeup of the Bosch 1618580000 Angle Head for their line of rotary hammers. I bought one of these not too long ago, but had no luck even finding a decent photo of one on the web before I gave up and ordered it. Bottom line: it's solid. Made in Germany no screwing around solid piece of Bosch equipment. The body is some sort of reinforced resin casting, and what I can see of the guts is crisply-machined metal.
After removing the front handle, it slips right over the head of your Bosch rotohammer and a shaft inside engages with the chuck like a bit, except that doesn't lock in. You tighten a hex bolt to clamp it onto the body of the drill, and it can be rotated to any angle to help you reach in tight spots.
There are some caveats, one huge and the others worth knowing about. The big one is it doesn't fit all of their rotohammers. I wound up having to go buy a whole new drill to get my job done! The verbage is confusing, so either check your model number against the list of drills it says it fits, or measure the diameter of the collar behind the chuck. The inside diameter of the angle head is 42mm. My "Bulldog Xtreme" (model 11255VSR) is 50mm... So now I have two rotohammers, which makes me a tool badass, but I think I'd rather just have the extra money I had to spend.
Another issue is runtime. After ten minutes or so of continuous use, the head will get hot and you have to let it cool down. It also reduces the impact action, so don't expect to go as fast as you can with the drill itself. I think it took me about 30 minutes to drill a 5/8" diameter hole 13" deep in decent concrete, including breaks to let the head cool down.
So there you go.
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| Bosch Angle Head |
After removing the front handle, it slips right over the head of your Bosch rotohammer and a shaft inside engages with the chuck like a bit, except that doesn't lock in. You tighten a hex bolt to clamp it onto the body of the drill, and it can be rotated to any angle to help you reach in tight spots.
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| Angle Head Attached to My Rotary Hammer |
There are some caveats, one huge and the others worth knowing about. The big one is it doesn't fit all of their rotohammers. I wound up having to go buy a whole new drill to get my job done! The verbage is confusing, so either check your model number against the list of drills it says it fits, or measure the diameter of the collar behind the chuck. The inside diameter of the angle head is 42mm. My "Bulldog Xtreme" (model 11255VSR) is 50mm... So now I have two rotohammers, which makes me a tool badass, but I think I'd rather just have the extra money I had to spend.
Another issue is runtime. After ten minutes or so of continuous use, the head will get hot and you have to let it cool down. It also reduces the impact action, so don't expect to go as fast as you can with the drill itself. I think it took me about 30 minutes to drill a 5/8" diameter hole 13" deep in decent concrete, including breaks to let the head cool down.
So there you go.
