HYYKJ Wet Diamond Core Drill Bit Set 2.2" 3" 4" 5" for Brick Concrete Block Granite Drilling Coring (4pcs/set)

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About HYYKJ Wet Diamond Core Drill Bit Set

Specifications: Segment height: 10mm / 0.4'' Bit Diameter x Bit Length: 56mm x 370mm (2.2'' x 14.6'') 76mm x 370mm (3'' x 14.6'') 102mm x 350mm (4'' x 13.8'') 120mm x 350mm (5'' x 13.8'') Thread size: 22mm / 0.87'' Package size:41cm x 27.5cm x 27cm (16'' x 10.8'' x 9'') Package weight: 8.7kg / 19.2lbs Features: Excellent choice for all type of general drilling Ideal for plumbers, electricians or general contractors Application: Intended for drilling hard concrete, block, brick, masonry, and the like materials It is suitable for drilling and coring of reinforced concrete, brick wall drilling, air conditioning installation, pipe, road signs drilling, expressway and other outdoor projects. This product is tested, thickness of 220mm / 8.7'' cement block, inside four 14mm steel bar, play through about need 4 minutes, can play 40 holes. Hand-held drilling machine need 3-4 minutes to play through the brick wall (only for reference, different operating conditions will affect the bit working life) Notice: Drilling method: use WET only Rhinestones: In the use of the process must be added water, should be drilled to dig core engineering, the proposed matching fixed or hand-held drilling rig Install the bit: first check the spindle has no swing, electrical and mechanical parts are normal, on the bit to ensure that the drill and drilling rig clamping, and maintain concentric Note: The thread diameter of the water drill is 22mm / 0.87''. Please make sure your product can use 22mm / 0.87'' thread diameter before your order. Package included: 4 x Wet Diamond Core Drill Bit(2.2'', 3'', 4'', 5'')