This straight cutter blade (Starlock Max fitting) is for the removal of flexible joint-filling compound or caulking in deep joints. You could also use it in some cases for de-glazing wood-framed windows as an alternative to a putty knife and hammer. The thick one-piece steel construction delivers maximum durability.
The FEIN Starlock (patented) oscillating multi-tool mounting system overcomes the disadvantages found with previous designs. Starlock sets the new standard in the oscillating multi-tool market. The design greatly improves the transmission of torque from the motor to the blade tip. No more wasted power, means faster working, minimised vibration and better results.