The 3834 Series Arbors are available in a range of sizes suitable for different chuck capacities. Shank Size. 11. 1 mm The design of the 11152 arbor makes it suitable for 32-210 mm holesaws, it eliminates play & increases the strength of the holesaw by redistributing the load from the thread to the solid cap. These are to be used with hand held machines &, when operating with high work load, in static machines.