Own the basic hardware jig. Add these line boring attachments to our basic hardware jig to have the all around template solution for the cabinet installer. A great alternative to the line boring machine for the small shop. Ideal for 32mm line boring, also can be used to drill handles up to 29-Inch in length. Lightweight machined aluminum, 5MM Case Hardened Steel Bushings. When assembled, A total of 25 bushings spaced at 32mm apart, Overall assembled length 31-Inch.