9Pcs Concrete Hole Saw Kit Cement Core Drill Cutter Bit Port 30-100mm

Description Our product is made of high-quality carbide it can be precisely positioned and has fast hole opening efficiency. And the double chip discharge holes and spiral groove design give it a powerful cleaning ability. In addition we provide you with a protective aluminum case for storing and carrying these tools. It will become a powerful assistant in your work. Details External Threaded Interface: The product is designed with an external threaded interface. It can fit closely with your drill chuck thus greatly improving the drilling speed. Spiral Groove: The product adopts a spiral groove design to exclude debris it can make debris cleaning more comprehensive and effectively prevent debris clogging. How to Use Prepare the hole opener and coupling rod. Put the center drill into the joint rod. Tighten the screws. Install the hole opener and finish. Application This product is suitable for concrete soil walls red brick walls foam bricks etc. and is used when installing air conditioners water pipes water heaters grease pipes sewers etc. It is suitable for a round shank with five pits for electric hammers and a round shank with two pits and two slots for impact drills. Specification Color: Silver Style: Industrial Number of Pieces: 9 Material: Alloy Alloy Steel Process: Sandblasting Anti-rust Oil Size of Hole Saws: 1-2/11 1-3/5 2-9/16 3-5/32 3-15/16 (30mm 40mm 65mm 80mm 100mm) Length of Connecting Rod: 11-13/16 (300mm) Length of Center Drill Bits: 4-1/3 (110mm) Angle of Pilot Drill Bit: 135° Inner Wall Depth: 52mm/2.05in Screw Port: M22 Gross Weight: 4.5kg/ 9.9lbs Package Size: 39*24*11cm/15*9*4in Package Included 5 x Hole Saws 2 x Center Drill Bits 1 x SDS MAX Connecting Rod 1 x SDS PLUS Connecting Rod 1 x Storage Case Notes Please fix the center drill before use. Please test whether the hole opener is fixed firmly by idling it before use. The screw of the wall opener with a diameter below 1.57inches will be higher than the opener please take care to position it and remove it. After positions with the center drill remove the center drill and follow the previous marks to open the hole. Please protect yourself well before working and wear earplugs if you have to work for a long time. This product cannot be used for load-bearing walls or walls with reinforcement. We recommend that you stand firmly use even force and firmly grasp the machine to avoid accidents. Please allow the slight color difference caused by the shooting light and the 1-3 cm error due to manual measurement and make sure you do not mind before ordering.