About This Product
When you need a screwdriver bit that just works – no stripping, no slipping, no nonsense – this Hazet 8506-PH4 is a top-tier choice.

It's a PH4 Phillips bit, which is the larger size you'd use for bigger screws on heavy-duty applications.
The drive is a standard 1/4 inch internal square, so it fits most manual screwdrivers and bit holders.

The bit itself is made from chrome vanadium steel with a CVD-TiN coating – that's a titanium nitride layer that reduces friction and adds serious wear resistance, so it lasts way longer than cheap uncoated bits.

The tip is made to ISO 8764-1 standards, so you know the fit is precise and won't cam out easily.
It's got a knurled grip section that gives you better finger control when you're starting screws by hand.

Total length is 28mm with a 16mm blade, and it's about 12mm in diameter.
And of course, it's made in Germany, which tells you a lot about the quality and attention to detail.

This isn't a budget bit – it's a pro-grade tool that'll stick around for years.
Perfect for mechanics, woodworkers, or anyone who wants a bit they can actually rely on.