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Panasonic EY7840LN2S 14.4-Volt Li-ion Rotary Hammer Kit by Panasonic
Product DetailsManufacturer: Panasonic Model: EY7840LN2S Product features: - Compact and Lightweight. Length 9-Inch 5.1lbs
- Hammer mode: 0 -1,000 rpm and a maximum of 4,000bpm with a hitting force of 21.6 Kn. Drill mode: 0-1,000 rpm
- 5/8-Inch Chuck
- SDS Plus Bit System
- GuardION Battery Protection System
Description of Panasonic EY7840LN2S 14.4-Volt Li-ion Rotary Hammer KitIncludes 14.4 Volt Lithium-Ion Cordless Rotary Hammer Kit with GuardION - EY7840LN2S, (2) High Capacity 3.0Ah Lithium-Ion Cobalt Battery Packs, Universal Battery Charger, Carrying Case
Tools and Hardware Reviews of Panasonic EY7840LN2S 14.4-Volt Li-ion Rotary Hammer KitCustomer Review: Suprising power for such a low voltage tool Summary: 4 Stars
I purchased this tool after I was unable to find any reviews about it, but figured that I could use the batteries and charger for my impact driver and drill even if the rotary hammer didn't live up to my hopes.
After 2 days of use, I am pretty happy with it. I think that it will drill about 80 or so 5/32" tapcon holes in hollow block, or around 40 5/32" x 2 1/2" holes in concrete per battery. Obviously, compared to a corded SDS drill, the panasonic is no match, but for small projects, it works great.
I have been hanging cabinets on block walls and find the relatively light weight tool to be comfortable to work with.
I have yet to use the supplied shoulder strap because its not extremely easy to attach and remove.
The RPM's on this tool are a little low for must drilling applications. I just don't have the time to wait and would rather use my cordless drill or impact instead.
It includes an adapter to use 1/4" quick connect bits for drilling and driving. Its a nice addition, but one that I don't think I will use very much.
Just for fun, I threw in a 1/2" x 4" bit and had the buried in a concrete slab in under 15 seconds with no problems.
Overall, I am happy with my purchase. If I didn't need the batteries, I would have looked into buying the larger Panasonic rotary hammer drill. Since I think that this tool will only see use about 20% of the year, I'll give the batteries a workout in the drill and impact, and maybe a cordless jigsaw some day.
Rotary Hammers
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