Features EASY OPERATION: This 45 degree pneumatic mini chamfering machine air tool has a lightweight design, small and exquisite, and can be easily operated with one hand. Use the matching wrench to easily adjust the chamfer size and replace the blade ADJUSTABLE CHAMFER SPEED: The portable deburring trimming chamfering tool air grinder can freely adjust the speed you need. The air intake size can be adjusted at will. Chamfer size adjustment just unscrew the screw, rotate to select the scale size, and tighten the screw EXCELLENT ABILITY: The pneumatic chamfering machine is equipped with double cutter heads made of tungsten steel, which has strong chamfering ability and can easily trim the corners of the mold, very practical SAFE AND DURABLE: The mini chamfering tool with safety pressure plate switch use is more assured. And 1/4in metal net can prevent the burr and foreign matters from entering WIDE APPLICATION: The pneumatic beveling machine can be chamfered in the narrowest and shallowest space, suitable for various angles, such as straight edge chamfering, inner and outer round hole chamfering 1. EASY OPERATION: This 45 degree pneumatic mini chamfering machine air tool has a lightweight design, small and exquisite, and can be easily operated with one hand. Use the matching wrench to easily adjust the chamfer size and replace the blade 2. ADJUSTABLE CHAMFER SPEED: The portable deburring trimming chamfering tool air grinder can freely adjust the speed you need. The air intake size can be adjusted at will. Chamfer size adjustment just unscrew the screw, rotate to select the scale size, and tighten the screw 3. EXCELLENT ABILITY: The pneumatic chamfering machine is equipped with double cutter heads made of tungsten steel, which has strong chamfering ability and can easily trim the corners of the mold, very practical 4. SAFE AND DURABLE: The mini chamfering tool with safety pressure plate switch use is more assured. And 1/4in metal net can prevent the burr and foreign matters from entering 5. WIDE APPLICATION: The pneumatic beveling machine can be chamfered in the narrowest and shallowest space, suitable for various angles, such as straight edge chamfering, inner and outer round hole chamfering Specification: Item Type: Mini Pneumatic Chamfering Machine No Load Speed: 30000RPM Chamfering Capacity: C0.1-C1.5 Adjustable Depth: 0.1-0.9mm Chamfering Hole Diameter: ≥7mm How to Use: Take out the product from the packaging and install before use. packing list: 1 x Mini Pneumatic Chamfering Machine 1 x Air Hose Interface 5 x Screws 1 x Nut 1 x Bearing 3 x Special Wrenches 1 x Lubricating Oil 1 x User Manual Package List 1 x Mini Pneumatic Chamfering Machine 1 x Air Hose Interface 5 x Screws 1 x Nut 1 x Bearing 3 x Special Wrenches 1 x Lubricating Oil 1 x User Manual