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 SL E-Cut Curved Saw Blade HCS feature set teeth for all wood, plasterboard and plastic materials. The blade has curved cutting geometry for optimum plunging and clean precise cut edges, especially on smooth surfaces. It is narrow, with waist for optimum cutting speed and good swarf removal. 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