Wera 05135040001 851/1 J 1/4'' Hex Phillips Insert Bits are designed for phillips screws and specifically optimized for Japanese Phillips Screws. Wera 851/1 J 1/4'' Hex Phillips ® Insert Bits are ductile and tough for hard materials and feature Wera's Connecting Series 1. Wera 851/1 J 1/4'' Hex Phillips ® Insert Bits are suitable for holders as per DIN ISO 1173-D 6.3. Japanese Phillips Screws or Asian Phillips screws are similar to camera screws.