Wera IMP DC 855/4 Impaktor Diamond Screwdriver Bit PZ #2 x 50mm
great bits far outlast all of the other impact bits on the market
9 Nov 2014
not too good
got some of these because i thought they'd be the mutts nuts..........wrong. they are very nice but for th money and the "above average" life span i personaly dont think they are worth it as with an 18v impact driver i trashed one in a few hours (approx 400 2" screws through 3/4" ply into timbers). interesting to see if the short bits with an impactor bit holder would last longer?? gone down the route of buying boxes of cheaper impact bits that last just as long for a fraction of the price
8 Feb 2014
Awesome,! 2000 fixings +
Using this with the Tri Torsion adaptor in 18v cordless impact driver.
Can't get over how well these bits last!
Over 2000 floor fasteners and still going strong.
Beats the competition hands down.
Love Wera stuff and this bit exceeds expectations. I always take the time to 'seat' this bit properly in the screw head,mmaybe that's why it's lasted?
Don't know how Wera make this for the money. LOVE IT!
29 Nov 2013
Disappointing impact bit
Bought for the extra length to get into awkward areas!
Didn't last more than 2 hours camed out within minutes.
I like Wera Bits but wont be getting any more of these
14 Aug 2013