The ATI Tools ATI413 Holesaws are a dream. Precision ground, HSS, fine-tooth holesaws that don’t break the bank. However, that dream can quickly turn to a nightmare when you realize the thread is smaller than any of the arbor offerings from Paragon Machine Works. Well, that’s where I’m here to help! These arbors are turned from solid stainless steel bar so they will stay corrosion free & last a life time. They are threaded the exact depth of the ATI arbor holesaws with 5/16”-24 TPI threads.

** Note: The Holesaw is not included, these can be purchased from the ATI Tool Store.