9Pcs Concrete Hole Saw Set Concrete Drill Bit Set Masonry Hole Saw Set for Plus Hammer Drills Hole Saw Drill Bit Set for Brick Concrete Cement Stone Wall W/A 4-1/3" Connecting Rod

How to Use：1.Prepare the hole opener and coupling rod.2.Put the center drill into the joint rod.3.Tighten the screws.4.Install the hole opener and finish.Specification：Color: SilverStyle: IndustrialNumber of Pieces: 9Material: Alloy, Alloy SteelProcess: Sandblasting, Anti-rust OilSize 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/2.05inScrew Port: M22Gross Weight: 4.5kg/ 9.9lbsPackage Size: 39*24*11cm/15*9*4inPackage Included：5 x Hole Saws2 x Center Drill Bits1 x SDS MAX Connecting Rod1 x SDS PLUS Connecting Rod1 x Storage CaseNotes：1. Please fix the center drill before use.2. Please test whether the hole opener is fixed firmly by idling it before use.3. 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.4. After positions with the center drill, remove the center drill and follow the previous marks to open the hole.5. Please protect yourself well before working, and wear earplugs if you have to work for a long time.6. This product cannot be used for load-bearing walls or walls with reinforcement.7. We recommend that you stand firmly, use even force, and firmly grasp the machine to avoid accidents.8. 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.

• 【Product Specification】This is Concrete Hole Saw Kit, Number of Pieces: 9, Material: Alloy, Alloy Steel, 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.
• 【High-quality Material】The concrete hole saw set is made of high-quality carbide as raw material, which has strong hardness and wear resistance, making the service life of the product longer. The product is equipped with a triple-edged blade, which makes the opening faster and greatly improves your work efficiency.
• 【Precise Positioning】The concrete hole saw bit adopts a 135° drill tip design, which can accurately position the drill hole and effectively help you reduce construction error. The round shank is available in "five pits" and "two pits and two slots", which is well suited for both electric hammers and impact drills and can be securely clamped on them.
• 【External Threaded Interface】The concrete hole saw is designed with an external threaded interface. It can fit closely with your drill chuck, thus greatly improving the drilling speed. The product adopts a spiral groove design to exclude debris, it can make debris cleaning more comprehensive and effectively prevent debris clogging.
• 【Wide 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.