Features: Excellent Workmanship: the bottom has a fine frosted texture to increase friction, and the nut can firmly lock the grinding wheel and is not easy to slide. Great Material: this clamping nut angle grinder is a high-strength alloy material, high-strength work does not deform, can withstand a torque of 40n and a high speed of 12000rpm, quality is guaranteed and life useful is long. Wide Range of Applications: the clamping nut is suitable for all angle grinders with an M14 interface on the market, for bosch, metabo, hilti and, of course, for all angle grinding machines not mentioned, such as diamond cutting discs, grinding discs, cup-shaped grinding discs, diamond plates and other types of grinding wheels. Warm Tips: If the torque is too much to remove, you can align the hole with a conventional 2-pin wrench to remove it. Before use, check the nut for defects and damage to avoid safety accidents. Satisfactory Service:If you have questions,contact us. Specifications: Quick use without tools Line model: M14 Material: steel Diameter: 46-50mm Height: 13mm Top thickness of the self-locking pressure plate: 13mm Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1pc / 3 pcs flange nut set tools.