Proxxon industrial 75 piece super safety and speciality bit set proxxon 23107 if it s fixed with a screw the chances are this 75 piece set from proxxon industrial will have the tool required to tighten or loosen it made from chrome molybdenum silicon manganese vanadium alloy special steel and supplied in a powder coated solid steel case these frac14 in bits can tackle a variety of special screws including tri wing and torx proxxon industrial 23107 super safety and specialty bit set 75 p