Automatic high-speed box grooving tool IntrodctionLS-1200B Automatic high speed book case grooving machine is newly invented based on the experience of older roller grooving machine. Weapply the new technology which uses some belts to bind the cardboard and the roller together to convey the cardboard, this technology makes the groove straight and correctly. Thereby, the products are of great qualityAdvantages1. three times faster that normal ones.2. precise automatic feeding system lower the rejection.3. only one operator needed.4. easy-operating.5. dustless and noiseless.6. grooving angle is adjustable while no need to change blades.7. theblade is durable.