Bit size(mm) : 6.35. Sound level : 94 db(A). Note : Product image may be slightly different than actual product received. The item "Air Impact Screwdriver UD-306SL Pro Series Pneumatic Tools Two Hammer" is in sale since Saturday, February 1, 2020. This item is in the category "Home & Garden\Tools & Workshop Equipment\Air Tools & Air Compressors\Air Drills".The seller is "mirine" and is located in mirine. This item can be shipped worldwide.