TTC Vise For Holding Round Work & Shaft - Model : VFRS Jaw Width: 4" Jaw Opening: 2-1/2" Holds short pieces 1/2" to 2-1/2" in diameter. Used on milling machines and drill presses. Jaw width: 4". Semi steel body and ground ends. Height: 6-3/8". Clamping bolts and (2) adjustable sliding blocks included. Capacity: 1/2" to 2-1/2" round work.