Average Reviews:
(More customer reviews)Like most Hitachi tools , this is very well engineered. It stands up to all kinds of abuse. Mine ran for years drilling all sizes of holes in old hard concrete. I also used it for chipping which is hard on roto hammers. They don't have a lot of power for breaking concrete as this is not their intended primary use. So when you do use them for breaking , they have to run a lot longer than a demolition hammer would. It has pretty good power for drilling though. I bought mine used and had it for five years before replacing it recently. I went to SDS max which is currently replacing spline drive in the large rotary hammer market. It is a tighter mechanism which transfers more of the hammering power to the bit , resulting in faster drilling performance. If you have a lot of spline bits , this would be a good tool to buy. If you are starting from scratch , I would recommend the SDS max hammers from Hilti , Bosch or milwaukee
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Sealed grease system insures minimal maintenance. Auto-stop carbon brushes to protect armature. Dust-proof cover for extended maintenance-free operation. STANDARD EQUIPMENT: Plastic Case (317657), Side Handle (981870), Depth Stopper (971786), 3 Dust Covers (985373), Hex Wrench (944459) and Hammer Grease A 1 oz Tube (981840) SPECIFICATIONS: 8 AMP 18V motor, Impact energy of 5.2 ft./lbs. No-load speed of 380 RPM and 2800 BPM. Capacities: Drill 1-1/2". Core bit 4-1/8".
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