1PC/1Set Electric Hammer Drill Dust Collector Hole Opener Dust Collector Cover Dustproof Hole Saw Drill Bit Cover Hand Tool Accessories Service conditions: Total length of hole opener - shank length 70mm Diameter of tapper handle 10mm The length of the tapper handle is 20mm (if the handle is too short, putting on a dust cover may affect the clamping fastness of the electric drill) Electric Drill/Hole Opener Dust Collector With our drill cover system, you can contain the dust and debris. for a clean work space. The drill attachment is made of durable plastic. It features a hollow chamber that collects dust and debris as you drill each hole. - Dust, dustproof, fixed. - Bowl-shaped design, more convenient to use, larger capacity. - The sealed buckle design ensures that dust does not leak. - Non-slip sponge + pvc shockproof and silent gasket, stable. - Applicable scene: Suitable for engineering installation, air conditioning installation, wall drilling, etc. Package includes: 1PC or 1Set * * depending on the image you choose