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Your cart is empty.The BOSCH HC2102 5/8-Inch x 8-Inch SDS-plus Bulldog Rotary Hammer Bit is carbide tipped for long life in tough applications. Centric tip ensures quick starts in concrete. Wear mark alerts user when tip wears beyond ANSI specification. Bit runs cooler thanks to improved flute design.
SV5
2025-08-31 14:08:19
Like drilling through butter. Try 'em, you'll like 'em.
Larry D.
2025-08-07 16:45:31
Great bit
Customer
2025-07-27 13:19:25
There are indentions in the shank. It is designed for an industrial hammer drill. It will not Chuck properly in one of the cheaper hammer drills that has a drill Chuck. It will wobble severely. I cut some of the shank off and put some small flats on it with a grinder. The bit drilled four holes in concrete with no problem.
Meryl Logue
2025-07-21 14:11:30
I bought this to use with rock wedges. I read some negative things that implied this bit isn’t up to the task.It is.Don’t push on it. Let the actual hammer drill do its job. Keep it cool. Use a small bottle and stop every few seconds to fill the hole with water. On old cement I used it on the standard hammer drill setting. I am using a Bosch SDS plus drill. It goes through like butter. Until it hits a rock, of course.This morning I drilled two holes into modern 3600 psi concrete. My driveway. That did slow it down. So I broke out a pointed chisel bit and set it to Hammer plus drill. Once that hole was well started using lots of water, I kept the same setting and switched to this drill bit, and that bit just went to town.With any tool taking this kind of abuse, you must treat it with some respect. Keep it cool. Don’t force it. Let the drill machine do the work.Mine is still going strong with several hours of use on it.
Philip
2025-07-02 19:39:31
Used to drill huge stone in a chimney so I could split them and remove safely. Worked like a charm across about 30 stone and still has life.
WA
2025-06-26 13:34:11
Drilled two holes and went in series stepping up from 1/4 to 1/2 to 5/8 and the bit was wrecked. Worked great for like 8 minutes total.
Aaron
2025-06-02 14:25:09
Like the header says, I drills into rock, so....Im happy.
Damon D.
2025-05-16 18:32:56
Granite boulders.. we got that. This bit works pretty damn good. Sure , I wore them down till they broke the carbide. And bought more!And split some big stone with up to 14 feather and wedges.
JRL
2025-04-26 13:27:53
Travail bien.
gotgoat
2025-04-07 20:02:43
What I expected. Did the job I needed it for.
Paul Moir
2025-03-14 13:57:12
I use this to drill holes in granite. Good carbide with a really tough joint to the shank.
Bill Davis
2025-02-21 10:31:18
Worked extremely well, did what I needed.
ftheroux
2025-02-09 11:39:10
Certainly does the job very well with my rotary hammer. Do not try to use standard masonry bits with your rotary hammer. They will fail miserably (at least my Bosch ones did).
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