80-3000# Diamond Sharpening Stone Dry/wet Milling Household Grinding Whetstone
2PC 1/8 1/4 1/2 3/8 BSP Male Thread 6mm-16mm Straight Barb Tail Brass Connector. Made of durable diamond coated material is more efficient than normal whetstone. 2Pcs Brass Joint 1/8 1/4 1/2 3/8 BSP Male Thread 6mm-16mm OD Hose Barb Tail.