31Pcs Concrete Hole Saw Set, 30/40/50/65/80 100mm Masonry Hole Saw with SDS Plus & Max Shank Drill Bit Sets, Masonry Hole Saw Tool Set for Concrete,Brick,Cement,Stone,Wall Drilling. Pro MotorCar Less expensive nailheads are made

Less expensive nailheads are made from cheaper steel and are prone to bending when being installed which results in frustration and lost time

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model number: SST

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31Pcs Concrete Hole Saw Set, 30/40/50/65/80 100mm Masonry Hole Saw with SDS Plus & Max Shank Drill Bit Sets, Masonry Hole Saw Tool Set for Concrete,Brick,Cement,Stone,Wall Drilling. Pro MotorCar Less expensive nailheads are madeAbout this item 31 IN ONE 6PCS hole saws: 1 3 16(30mm), 1 9 16(40mm), 2"(50mm), 2 9 16 (65mm),3 1 8 (80mm),3 15 16 (100mm); 1x sds plus connecting rod(300mm, 11 13 16"); 1x sds max connecting rod(300mm, 11 13 16") 1x sds plus connecting rod(100mm, 3 15 16 )4x center positioning drill bits; 3x dust bag,3 Hexagon socket screw7 outer hexagon screws., 4 Allen wrenches,1 large L wrench Preminum Quality Tungsten Carbide: Made of tungsten steel and carbide,