Fuller Pro Flexible Hand Drive 1/2 inch drive 375mm Silver SKU: 254415 MODEL: 507-4905 Error. try again later You've successfully joined the club $ 34 .63 each Available on orders $50 to $1500.More info × Mitre 10 MSAvailable at Mitre 10 MEGA and selected Mitre 10 stores. Variants A professional grade 1/2 inch drive flexible head. It is made from strong chrome vanadium steel for long life edges. Its knurled handle allows the user to apply a stronger grip to apply more torque. Features and benefits Chrome vanadium steel. Polished for corrosion protection. Knurled handle for stronger grip.