Marcrist DCU-12-00 Core drilling bit. Feel free to ask any questions. Specifications: Size: 12 Diameter Overall Height: Approx. 12 Diamond Concrete Wet Core Bore Drill Drilling Bit 24 Spline Milwaukee Hilti. 21 Arbor: 24 spline Condition: Good Used. Mullett Industrial Sales contact info. Get images that make Supersized seem small. Tailor your auctions with Auctiva’s. 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 Saturday, January 18, 2020. 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.