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. FEIN E-cut Combo Starlock Wood 3pc Set is a selection of plunge cut saw blades that are specially designed for completing precise and exact work in wooden materials. This set includes a curved E-Cut standard saw blade, and two E-Cut precision BIM saw blades. 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