25 UNIVERSAL INDEPENDENT LATHE CHUCK. Brand Name: Rapidhold Chuck Size: 25 Chuck Style: Universal Independent Description: Direct Mount A2-15, 4-Jaw Independent, 2 Piece Jaw Hole Size: 6.299 ID Clamping Range: 2.750 – 21.260 Maximum RPM: 400 Model Number: 55139 Mount: A2-15 Number of Jaws: 4 OD Clamping Range: 6.299 – 24.803 Size of Mounting Bolts: 7/8-9 Type: 2pc Hard Reversible Jaws Weight: 375 lbs. 4-Jaw Independent Semi Steel A Type Direct Mount Chuck – 2 Pc Hard Reversible Jaw 1- Set hardtop jaws 1- Set hard master jaws 1- T-wrench 2- Hex keys 2- Eye bolts for chucks 10 & larger 1- Set mounting screws.