Wet/Dry Laser Segmented Core Bits Designed To Drill Most Popular Hard Surfaces Including for Porcelain Sintered Slabs, Granite, Quartz/Eng. Stone & Marble High-Quality Aggressive Core Bit Great for Jobsite Drilling of Faucet-Mounting Holes in Countertops and Vanities Fits On Most Popular High-Speed Grinders with 5/8”-11 Spindle Can Be Used with Core Bit Extension for Hammer Drill/Rotary Hammer Make Clean Rounded Corners for Square or Rectangular Sinkholes Versatile and Adaptable in Many Industries for Water, Gas and Electrical Piping Convenient for Wet or Dry Applications Part No. Diameter Maximum RPM Type Threads MSRP (USD) WLB00380 3/8" 12,000 Wet Only 5/8"-11 81.55 WLB00500 1/2" 12,000 Wet Only 5/8"-11 82.00 DLB00750 3/4" 12,000 Wet/Dry 5/8"-11 84.20 DLB01000 1" 12,000 Wet/Dry 5/8"-11 88.50 DLB01250 1-1/4" 12,000 Wet/Dry 5/8"-11 92.25 DLB01375 1-3/8" 12,000 Wet/Dry 5/8"-11 103.40 DLB01500 1-1/2" 12,000 Wet/Dry 5/8"-11 107.50 DLB02000 2" 12,000 Wet/Dry 5/8"-11 118.00 DLB02500 2-1/2" 8,400 Wet/Dry 5/8"-11 140.00 DLB03000 3" 8,400 Wet/Dry 5/8"-11 155.00 DLB04000 4" 8,400 Wet/Dry 5/8"-11 168.50 DLB11KIT All w/Toolbox 12,000/8,400 Wet & Wet/Dry 5/8"-11 1108.74 Question : Can I core drill on Porcelain Paver Tile dry?Answer : Yes. Alpha® recommends using a Laser Segmented Core Drill Bit on high-speed angle grinder. If you can supply water as cooling capacity, the performance of bit would become much better, and you can also eliminate dust from application. Since it is a very, hard dense material, we don’t recommend using this core bit on hammer drill or rotary hammer due to the rotation speed. Question : Why can’t I use Laser Segmented Core Drill Bit and Extender with percussion?Answer : Since diamond grits are very sharp and hard, you can cut the surface of material effectively so that continual grinding motion and fast peripheral speed are essential for faster application. Conventional tungsten carbide core bit does not cut the surface well, so in that case, you need to add percussion to bite into the material then remove debris with rotary motion. If you use a diamond core bit with percussion, the cutting edge of the diamond grits, would be potentially destroyed by percussion. Question : Why do I need to use a Pilot Carbide Drill Bit first?Answer : It is not easy to keep the core bit flat against the surface of material by hand-held application so that the user would approach in angle first until you get enough grip in the material. When you use on high-speed angle grinder, or with hammer drill or rotary hammer, there is a much slower rotation and with the length of the Extender, it is even more difficult to keep the cutting edge at the targeted area. A Pilot Carbide Drill Bit will stabilize the application so that you can establish the groove for segments quickly, and then you can remove a Pilot Drill Bit to let the diamond bit work faster in the groove. Question : Does Alpha® offer Core Bit Extender with Spline Shank?Answer : No. Alpha® does not offer a Core Bit Extender with Spline Shank since the larger rotary hammer that takes Spline Shank has less revolution, and that would not be suitable for diamond application. Question : What is the maximum drilling depth?Answer : Alpha® Laser Segmented Core Bit can be used up to 4” deep. When you approach the deep core drilling application, we recommend using water as cooling agent for better performance. Question : I already have an extender for tungsten carbide core bit. Can I use it with Alpha® Laser Segmented Core Bit?Answer : No. Since your extender for tungsten carbide core bit comes with different thread size, you cannot use that with Alpha® Laser Welded Core Bit. Question : Can I use Wet/Dry Sanding/Polishing with my Shop-Vac or other HEPA Vacuum?Answer : Alpha® recommends using a high-end HEPA Vacuum since the dust generated by diamond blades is a very fine dust which in cheap vacuums usually causes them to get clogged very fast. Question : Can I purchase parts for the Wet/Dry Sanding/Polishing Kits”?Answer : Certain parts and accessories are available online at www.alpha-tools.com. Question : Am I in compliance with OSHA Table 1 recommendation?Answer : Yes. You are compliance with Wet System. Since 1” diameter dust hose is not recommended by OSHA Table 1. You are not compliance with Dry System officially; however, the most important matter is CFM of your HEPA Vacuum and 1” diameter dust hose is good for dust suction and maneuverability. Question : Which HEPA Vacuum do you recommend with Dry Sanding/Polishing Kit?Answer : Alpha® offers a HEPA Vacuum with either 9.3 or 13.2 Gallon canister. This high-end HEPA Vacuum are perfect for the jobsite where 115v power is all you can find for dust collection. The vacuum can be found here on our website: https://www.alpha-tools.com/Pages/ProductDetails.aspx?PageCode=2790 Question : How do I know if the Wet/Dry Sanding/Polishing Kits fit on my grinder?Answer : Unfortunately, we cannot list all grinders available on the market since they keep changing. However, most likely, you can use Dust Shroud Kit 5” on most major bands and models.
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