"DESCRIPTION The Drill Doctor 500X model is designed for the tradesman requiring a versatile sharpener for every day use. The 500X has the durability and the flexibility required to sharpen the largest range and most popular sizes of dull or broken bits, including split points and masonry bits. Tip: The feature of this model enables sharpening and modification of drill bits for special applications. Adjusting the sharpening angle enables drill bits to be custom sharpened to suit different materials and applications. Decreasing the relief angle is ideal for harder materials and masonry drills etc. Increasing the relief angle will provide a more aggressive cut. The split point function is for restoring or creating self centering split point bits. Features: - Adjustable Point Angle - Adjustable Relief Angle - User Replaceable Diamond Sharpening Wheel - 3 Year Warranty Specifications: Drill Bit Capacity: 2.5mm to 13mm (3/32"" to 1/2"") Point Angle: 118 degrees or 135 degrees Voltage: 240 Volt 10 amp plug REVIEWS"