This is our Best Quality core bit MADE IN KOREA..
1 inch and 1/4 and 1 3/8 " Diamond Core Bit… Diamond Side Protection for Fast Cutting… This Core Bit Works Dry or Wet on Granite, Marble, Travertine, Limestone, Concrete
Thread size is 5/8-11 female… LASER WELDED
*If these are out of stock a substitute of higher quality may be shipped.
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Yellow core bit
Solid core bit , use this one inside the shop
