Precision Machined Exact Fit Phillips Tips. Production Quality Designed 1/4" Drive Bits. Through hardened for Maximum Durability. High Performance CRM-72 Modified Tool Steel.
This is most likely NOT a Wiha bit. comparison pictures. The photo and description say Wiha but the product I received didn't. So buyers beware. Haven't tried it yet, but experience tells me it won't be the accuracy I want. Live and learn I think.