The Professional German Quality Fein STARLOCK blade mounting system for oscillating tools allows you to change your multi tool accessory in just under three seconds. The Fein Starlock fitting that is an improved, standardised accessory-fitting system for multi tools. Starlock blades feature a future-proof 'cake-tin' pattern for a 3D connection between the motor and accessory. This ensures 100% power transfer for maximum performance, stability and precision. The Fein E-Cut Starlock Wood Metal 6pc is a collection of plunge-cut saw blades ideally suited for working with wood and metal. The set includes E-Cut long life saw blades (two 50mm x 35mm blades and two 50mm x 65mm blades) and E-Cut universal saw blades (one 55mm x 28mm and one 55mm x 44mm). Key Features: Professional German Quality. Ideal for Multi Tool Users For Home and for Work Fully compatible with Bosch Starlock and Makita Starlock machines and all other NON-Starlock multi tools on the standard OIS system