Star-point twist tip is self-sharpening and less binding. Reflective element reflects the energy of the return shock then converts it into new impact energy to increase material removal. Offers 100 hours of working time without interruption. For use with SDS-max hammers.
The chisel is 15-1/2" long and has no working length. Once mounted on the punch it will vary 12"+- punch used. Doesn't work any better than a regular chisel. The curved style at the tip doesn't add spin or power. It's still a solid chisel, it does the job. Description should include working length.
I bought this drill to add to my collection of useful tools. Bosch forgot to remove the grinding burr from the second corner of the rounded top. Good thing I had a hard metal grinding wheel on my old grinding machine to remove this burr. The burr went through the tempering furnace and was difficult to remove. I haven't used Bosch tools much, and pointed and flat chisels will get the job done. Without this test pass I would have given 5 stars.
Pros
Reflector reflects reflected impact energy and then converts it into new impact energy to improve material removal
I've had the pleasure of breaking tile floors, concrete and cement steps, sidewalks and slabs with my SDS Max and a light jackhammer during the last month. Unlike other Bosch R-Tec bits I've tried, this one works much better than its Monkey King counterpart I've reviewed previously. I was able to punch out 7 "holes" much faster than the Monkey King and Bosch bits. There was a noticeable reduction in vibration and it was a pleasure to work with. I suspect its performance is down to the design…