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Your cart is empty.The Pro-Graad Shaft Adapter is a must-have tool for anyone working with large 1-1/4”-7 threaded diamond hole saws and core drill bits. This versatile adapter allows you to convert your ½” chuck power drill to 1-1/4"-7 male threads, making it possible to use large 1-1/4”-7 threaded diamond hole saws and core drill bits. Constructed from high-quality alloy steel, this adapter is built for durability and reliability, ensuring long-lasting performance even in the most demanding applications. Designed for professional use, the Pro-Graad Shaft Adapter ensures a secure fit and stable operation, whether you're a DIY enthusiast or a seasoned professional. Its solid construction and reliable performance make it an essential addition to your tool kit, allowing you to tackle a wide range of drilling tasks with confidence and ease.
Nick and Melanie
Reviewed in the United States on July 5, 2024
I ordered this to use a 3" Core drill bit with my 1/2" impact drill. The 5/8"-11 threads thread snuggly into my 3" Core drill and make a tight fit. However, the 1/2" hex shank is ever so slightly larger than what my drill will accept. Not sure if my drill has a slightly smaller clearance or if the 1/2" hex is machined slightly too large. Before purchasing I did some research to confirm and hex shanks should have worked in my drill.3 stars due to this as the product is now not something I can use unless I purchased an even larger drill. Your experience may differ or if you have a larger capacity drill this should work well for you. Unfortunately, for 1/2" drills and under I can't recommend based on my experience.The bit seems well made and sturdy however and the threads went smoothly into my core bit.
TechSkills
Reviewed in the United States on July 4, 2024
There are times when I am working in a limited space and have needed to use my 5/8"-11 angle grinder attachments with a drill motor. This Pro-Graad 5/8"-11 thread to 1/2" hex shank hardened alloy steel drill adapter is a great answer to fill this requirement.This drill adapter has an overall good build design. It is made out of a single piece of alloy hardened steel that will hold up to most working conditions. The 5/8-11 threads are excellent. The hexagonal shank keeps this adapter from slipping in a drill chuck.All of my angle grinder attachments mount on this adapter without issue.I recommend the Pro-Graad 5/8"-11 thread to 1/2" hex shank hardened alloy steel drill adapter.
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