Features: 【Dust Cut】Effectively extracts 99% of dust, providing clean, safe air for the user. Suitable for most 4 inch and 5 inch hand grinders, 3 inch/4 inch/5 inch saw blades, not for polishers. 【Bi-directional Cutting】 Supports forward and reverse cutting. Quick and easy installation using universal holder with clamp combination Adjusts cutting depth and inside diameter. 【Use Range】 Mounting inner diameter can be adjusted for size, with inner ring can adapt to 100, 125, 150 model number angle grinder installation. Thickened washer for saw blade heightening, mounting 100-125 diamond dry cutting blade and grinding wheel blade. 【Suitable for Cutting】This dust cover can be assembled with angle grinder on different surfaces: marble, concrete, kitchen cabinet countertop, fiberglass resin plate. Connected with dust suction machine to vacuum the dust.     Specification: Product Name: Angle Grinder Guard Applicable models: 100/125/150 angle grinder Material: PC + iron Cutting blade diameter: 90/115/125mm Installation inner diameter: clamping 41-54mm Cutting cover size: 178 x 158 x 52mm Cutting depth: 3-27mm adjustable Suitable for: 4-5" diameter angle grinder and 3"/4"/5" saw blades   Cutting tips:   2.Cutting plate - adjust the saw blade to about the same thickness as the plate cutting effect is good, under the saw when the front of the hood stick well to the plate surface down to press the saw blade cutting dust-free. Please follow the instructions, do not shoot if you mind the cutting direction.   Package Included: 1 x Cutting Cover 1 x Adaptor 1 x Clamping Inner Ring 1 x Hexagon Socket 1 x Thickened Spacer   Note: Please allow 0.5-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you