Kuan, I usually use/buy Dewalt tools. They've served me well. However, I bought a Ryobi cordless drill a while back on sale and it's been great. Has a clutch system that switches between power and speed. Thought it was gimmicky initially, but it was cheap and seemed robust enough. Turns out it has been solid and dependable, good battery life.

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Chris
2007 E550 4Matic - 61,000 Km - Iridium Silver, black leather, Sport package, Premium 2 package
2007 GL450 4Matic - 62,000 Km - Obsidian Black Metallic, black leather, all options
1998 E430 - sold
1989 300E - 333,000 Km - sold
1977 280E - sold
1971 250 - retired

"And a frign hat. They gave me a hat at the annual benefits meeting. I said. how does this benefit me. I dont have anything from the company.. So they gave me a hat." - TheDon