The GRS 022-397 #4/0 QC HSS Onglette Graver is a precision 1.24 mm Quick Change (QC) onglette graver designed for professional hand engraving, jewelry engraving, stone setting, inlay work, and decorative metalwork. The onglette profile features a flat top with curved sides that taper to a narrow, sharp cutting point. This geometry provides excellent control for producing clean lines and controlled cuts while allowing the width of the engraved line to vary with the angle and depth of the cut. Made from high-speed chrome tool steel, the 022-397 is engineered for durability and edge retention during demanding engraving and stone-setting applications. The integrated QC shank is designed for use with GRS Quick Change holders, allowing fast and convenient tool changes without repeatedly setting up a traditional graver handle. At 1.24 mm, the #4/0 size is a versatile choice for detailed engraving work where a relatively fine onglette profile is required. Features & Benefits #4/0 Onglette profile – Provides a narrow, sharp cutting point for controlled engraving. 1.24 mm cutting size – Well suited for detailed line work, borders, inlay, and stone setting. Quick Change (QC) shank – Designed for fast tool changes with compatible GRS QC holders. High-speed chrome tool steel – Provides durability and reliable edge retention. Flat top with curved sides – Creates the characteristic onglette cutting geometry. Sharp pointed cutting edge – Allows precise entry into the metal and controlled line cutting. Variable line widths – The onglette profile can produce lines of different widths depending on technique and cutting angle. Ideal for stone setting – Useful for cutting and refining borders and other setting details. Professional engraving tool – Designed for jewelry engravers, stone setters, and metalworking professionals. Made in the USA – GRS precision engraving tooling is manufactured in the United States. Key Specifications Brand: GRS GRS Part Number: 022-397 MPN: 022-397 UPC: 196943901051 Product Type: QC Onglette Graver Graver Style: Onglette GRS QC Size: #4/0 Cutting Size: 1.24 mm Material: High-Speed Chrome Tool Steel Shank: GRS Quick Change (QC) Compatible Holder: GRS Traditional QC Tool Holder #004-803 Primary Applications: Line Engraving, Borders, Inlay Work, Stone Setting Country of Origin: USA Sold: Each GRS lists the 022-397 as the QC-4/0, 1.24 mm onglette, while Micro-Tools identifies the same part number, material, applications, UPC, and U.S. origin. Onglette Graver Profile An onglette graver has a distinctive profile with a flat top and curved sides that converge toward a narrow cutting point. This geometry makes it particularly useful for controlled line engraving and applications requiring both precision and variation in line width. The pointed cutting edge allows the engraver to enter the metal cleanly, while changing the tool angle can alter the width and character of the resulting cut. Ideal for Stone Setting The 022-397 is particularly useful for stone setting applications, including cutting borders and refining areas around settings. Its narrow point provides the control needed for detailed work where accuracy is critical. The #4/0 size provides a useful balance between fine detail and cutting strength for many jewelry and stone-setting applications. Line Engraving & Decorative Work The onglette profile is also well suited for line engraving, decorative borders, inlay work, and varying-width cuts. By adjusting the angle and depth of the graver, engravers can create lines with different visual weights using the same tool. This versatility makes the 022-397 a valuable addition to a professional engraving tool collection. Quick Change Compatibility The GRS Quick Change system allows compatible gravers to be changed quickly using a corresponding QC holder. The 022-397 is designed for use with the GRS Traditional QC Tool Holder #004-803. This system is particularly useful for engravers who frequently switch between different graver profiles and sizes during a project. QC holder sold separately. High-Speed Chrome Tool Steel The 022-397 is manufactured from high-speed chrome tool steel, providing the hardness and durability required for professional engraving and stone-setting applications. Proper sharpening and maintenance will help maintain the graver's cutting performance and extend its useful working life. Ideal Applications The GRS 022-397 #4/0 Onglette Graver is ideal for: Hand engraving Jewelry engraving Stone setting Diamond setting Border cutting Inlay work Line engraving Variable-width engraving Decorative metalwork Fine detail work Gold and silver engraving Professional engraving What's Included 1 GRS 022-397 #4/0 QC HSS Onglette Graver GRS QC Tool Holder is sold separately. Frequently Asked Questions What is the GRS 022-397? The GRS 022-397 is a #4/0 QC HSS Onglette Graver with a 1.24 mm cutting size. It is designed for line engraving, borders, inlay work, and stone setting. What size is the 022-397? The 022-397 is the #4/0 QC onglette, with a 1.24 mm cutting size. What is an onglette graver used for? Onglette gravers are commonly used for cutting borders, inlay work, line engraving, varying-width lines, and stone setting. Is the 022-397 a Quick Change graver? Yes. The 022-397 has a GRS Quick Change (QC) shank and is designed for compatible GRS QC holders. Which holder does the 022-397 use? Micro-Tools specifies the GRS Traditional QC Tool Holder #004-803 for the 022-397. The holder is sold separately. What is the 022-397 made from? The graver is made from high-speed chrome tool steel, providing durability and edge retention for engraving applications. Is the 022-397 good for stone setting? Yes. GRS specifically lists stone setting among the applications for its QC onglette gravers. Can an onglette graver make different line widths? Yes. The onglette profile is particularly useful for cutting lines with varying widths. The resulting line depends on the tool angle, depth, and engraving technique. What is the difference between the 4/0 and other GRS onglette sizes? The GRS QC onglette series ranges from 5/0 through 8, with the cutting size increasing from 1.16 mm to 3.36 mm. The 4/0 is 1.24 mm, making it a relatively fine option within the series. SKU: 022-397 UPC: 196943901051 BRAND: GRS MPN: 022-397 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. N138O
