System4 Slotted Bits 4.0 x 28mm
System 4 Micro Bits with 4mm drive have precision machined tips for exact Fit, made From Wiha Exclusive Formula CVM Tool Steel. Through hardened for unmatched durability. Made in Germany by:Wiha Quality Tools which offers a lifetime guarantee on most all of their tools.
- High alloy CVM steel, hardened, on 4 mm hex stock.