Product name: Hole opener dust cover Product size: Inner diameter 155 mm/ 6.1 inches,Inner diameter 135 mm/ 5.31 inches, Product color: As shown in the figure Product material: plastic Product features: This product is suitable for the hole opener whose shank diameter is not more than 10mm and shank length is more than 20mm Multi-functional design: Electric hammer drill hole opener dust cover is suitable for electric hammer and hammer drill to effectively protect users from dust and debris. Detachable handle: The dust cover is equipped with a detachable handle for easy carrying and operation, making the work more convenient and comfortable. Efficient dust control: The dust control cover is made of high quality material, which has excellent dust control effect and effectively extends the service life of electric hammer and hammer drill. Environmental protection materials: Dust cover is made of environmentally friendly materials, does not contain harmful substances, safe and reliable, in line with environmental protection requirements. Application scenario: Suitable for a variety of building construction, decoration engineering and other occasions, to protect the health of users, improve work efficiency. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact mewe will give you some suggestion, but it is for you reference only. Shipment includes: 1 pcs Hole opener dust cover