The Grinder can withstand up to 1000 pounds of torque and torsion while retaining its shape and elasticity. It’s Bolt’s half-ton bar and intended for athletes who want to lift hard and long without worrying if their equipment can keep up.Forged from high-quality spring steel, this easy-grip 28-mm-diameter bar spans 88 inches in total, with 14.5 of those inches dedicated to the sleeve. Unlike the Scythe, Tusk, and Thrasher, the Grinder’s knurling is black with medium knurling to give your hands excellent traction. This knurling begins immediately after the sleeve and extends 17 inches to the middle where there’s 16 inches of smooth black finish before the knurling starts up again for another 17 inches. That’s more than half the bar dedicated to grip space. We made the Grinder for those who grind. It’s a hard bar. Rise to its challenge.Specifications: 2 bushings 4 needle bearings Weight: 23.1 kg / 51 lb Length: 88 Inches Capacity: 1000 lb Tensile Strenght: 19000 psi Diameter: 28 mm Bushings: 2 Bearings: 8 Knurling: Light / Medium Shaft Coating: Hard Chrome Sleeve Coating: Hard Chrome Center Knurl: No Knurl Marks: Dual Sleeve Length: 14.5 Inches Composition: Spring Steel Ends: Snap Ring