Marcrist DCU-12-00 Core drilling bit. Feel free to ask any questions. Specifications: Size: 12 Diameter Overall Height: Approx. 21 Arbor: 24 spline Condition: Good Used. Mullett Industrial Sales contact info. Office: 313.444.3268. Auctiva offers Free Image Hosting and Editing. Track Page Views With. Auctiva’s FREE Counter. The item “12 Diamond Concrete Wet Core Bore Drill Drilling Bit 24 Spline Milwaukee Hilti” is in sale since Tuesday, September 21, 2021. This item is in the category “Business & Industrial\Light Equipment & Tools\Drills & Hammers\Core Drills & Rigs”. The seller is “mullettindustrialsales” and is located in Clare, Michigan. This item can be shipped worldwide.