Bahco 3834-ARBR-930-C Carded Arbor 3/8" 14-30mm Bahco 930 Arbor 3/8in is suitable for 14-30mm holesaws, for use with hand held machines. All arbors are hardened for maximum strength. The 3834 Series Arbors are available in a range of sizes suitable for different chuck capacities. 3834-ARBR-930-C Specification: Shank size: 8.5mm What is included: 1x 3834-ARBR-930-C Carded Arbor 3/8in 14-30mm