The drill bit grinder operation video frequency online looked that... Application (patent) number: 200820084516.9 Please click ^^ 1. This aircraft is portable for the fool, the attrition is accurate and is fast, the simplicity of operator, does not need the skill then with ease to grind. 2. Price economy, saves the cost greatly, raises the operational effectiveness. 9 3. Direct installment diamond grinding wheel, the angle is precise, the life is long. 4. Electronic control type force DC motor: Frequency fixing, horsepower, but long time use. 5. Uses the bearing rotation, the locking attrition angle is precise. 6. Proprietary product can sharpen the drill bit, the cutting edge (front rake), before having the tip angle (vertex angle), to run away the clearance angle (clearance angle), the cutting edge (front rake) the size adjustment angle, may substitute the center drill, the escape of chips is easier. 7. This aircraft is equipped with the dead center (central point) the size adjustment function, can along with the drill hole material material quality, the speed make the effective coordination, can control the work piece the quality and the precision and lengthens drill bit's life. Technical parameter: Project MR-13D Attrition scope: Φ 2-Φ 13.5mm Tip angle: 90° -135° Power: AC220V/180W Rotational speed: 5300RPM Standard grinding wheel: CBN Standard collet: 3-13mm Standard equipment: 5mm Six jiao spanner match grinding wheel: SDC Match collet: Φ 2.5, Φ 3.5, Φ 4.5 Weight: 10Kg Packing size: 370*170*190mm

