Kor-It Custom 4" Wet/Dry Diamond Concrete Pavement Core Drill Bit USA Made NIB!

Description

Hello and welcome to my listing! Here we have a brand new in the box 4" custom double cylinder diamond core drill bit made by Kor-It. These core bits were originally manufactured to core concrete pavements for the installation of special Sensys Networks traffic sensors. The outer bit is 4" in diameter while the inner bit is 2" in diameter. This makes partial depth coring easier because the inner cut allows you to put your chisel in the cut and break out the cut section.
The bit is designed to be used in dry drilling situations, but you may be able to use it with water as well. There is a steel depth control collar welded to the outside of the outer bit. This limits the drilling depth to 2.5", but the welds could easily be cut and ground to remove the collar and increase the maximum drilling depth. I think with some simple modifications you could easily have a bit that cores 4" holes in concrete up to approximately 6" thick. You will be cutting a 4" and a 2" hole at the same time, but I dont see an issue with that.
This core drill bit comes with an industry standard 1.25″ x 7 thread
Kor-It makes high quality core drilling bits in the USA. This bit is no exception.
Please see photos for additional condition details. Check out my other listings for additional items. I am happy to combine shipping.
Paypal Accepted! Shipping is economy shipping to USA only. The sale of this item will be considered final. All items are sold "as is". I have attempted to photograph and accurately describe every item as to its condition and authenticity to the best of my ability. I intend that photographs are part of the description. I usually try to take multiple photographs of an item. If you are not sure what you are buying, please ask first, or DO NOT BUY it. I will provide positive feedback upon receipt of positive feedback from buyer.