The GRS 023-122 Gray Roughing Diamond Wheel is designed for fast, efficient shaping of carbide and HSS gravers. Its coarse diamond surface quickly removes material, making it an excellent choice for establishing graver profiles and performing initial shaping before moving to finer sharpening and polishing stages. With a 2.35 mm (3/32") shank, this GRS diamond wheel is compatible with many micromotors and flex-shaft systems, including NSK EVO, Electer, and Foredom hanging motors. The compact 22 × 2.5 mm wheel provides controlled access to the tool while the coarse abrasive allows for rapid material removal. Use the Gray Roughing Diamond Wheel as the first step in a multi-stage graver sharpening process. Follow with the GRS Blue Medium Diamond Wheel (#023-123) for refined shaping and the GRS Yellow Diamond Polishing Wheel (#023-120) for polishing and finishing. GRS identifies the Gray Roughing Wheel as the fast-roughing option in this three-wheel system and specifies a maximum operating speed of 20,000 RPM. Features & Benefits Fast material removal for shaping carbide and HSS gravers Coarse diamond abrasive is ideal for initial graver shaping 2.35 mm (3/32") shank fits compatible micromotors and flex-shaft systems Compatible with systems such as NSK EVO, Electer, and Foredom Compact 22 × 2.5 mm wheel provides controlled access to the graver Designed for efficient sharpening and shaping of engraving tools Maximum operating speed of 20,000 RPM Excellent for professional engravers, jewelry makers, and tool sharpening applications Made by GRS, a trusted manufacturer of professional engraving and jewelry tools Key Specifications Brand: GRS GRS Item Number: 023-122 MPN: 023-122 UPC: 196943901341 Wheel Type: Gray Roughing Diamond Wheel Abrasive: Diamond Shank Diameter: 2.35 mm (3/32") Wheel Size: 22 × 2.5 mm Abrasive Type: Coarse / Roughing Maximum Speed: 20,000 RPM Primary Use: Shaping carbide and HSS gravers Country of Manufacture: United States Specifications are based on current GRS and Micro-Tools product information. Ideal for Graver Sharpening The GRS Gray Roughing Diamond Wheel is particularly useful when a graver needs substantial material removed during initial shaping. Its coarse abrasive makes quick work of carbide and HSS, helping establish the desired tool geometry before switching to progressively finer wheels. For a complete sharpening sequence, use: GRS Gray Roughing Diamond Wheel #023-122 – Fast initial shaping GRS Blue Medium Diamond Wheel #023-123 – Refined shaping GRS Yellow Diamond Polishing Wheel #023-120 – Fine polishing and finishing GRS lists these three wheels as complementary options for shaping and polishing carbide and HSS gravers. Frequently Asked Questions What is the GRS 023-122 diamond wheel used for? The GRS 023-122 is a coarse diamond wheel designed for quick shaping of carbide and HSS gravers. What size shank does the GRS 023-122 have? The wheel has a 2.35 mm (3/32") diameter shank, allowing it to be used with compatible micromotor and flex-shaft systems. What is the maximum RPM for the GRS 023-122? The maximum recommended speed is 20,000 RPM. Do not exceed the manufacturer's specified maximum speed. Can I use this diamond wheel with an NSK EVO? Yes. GRS states that the wheel easily mounts in compatible micromotors such as the NSK EVO and Electer. It can also be used with compatible Foredom flex-shaft hanging motors. Is the 023-122 suitable for carbide gravers? Yes. It is specifically designed for quick shaping of carbide and HSS gravers. What wheel should I use after the GRS 023-122? For a progressive sharpening process, GRS offers the Blue Medium Diamond Wheel #023-123 for refined shaping and the Yellow Diamond Polishing Wheel #023-120 for fine polishing. SKU: 023-122 UPC: 196943901341 Brand: GRS MPN: 023-122 Made In: United States Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided. I055E
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