GRS 004-965 GraverMach AT® Engraving System – Hand & Foot Control

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The GRS 004-965 GraverMach AT® is a professional pneumatic engraving system that combines the precision of Airtact hand control with the versatility of traditional foot control. Wi th the turn of a selector knob, engravers can instantly switch between hand and foot control to match their technique, workpiece, and preferred working style. Designed for professional hand engraving, jewelry engraving, stone setting, relief engraving, and precision metalworking, the GraverMach AT provides exceptional control over handpiece power while maintaining the familiar operation and performance of the GRS GraverMach and GraverMax systems. The integrated Airtact air-logic control system allows handpiece power to be adjusted directly by the hand without adding mechanical moving parts to the handpiece. This provides smooth, intuitive power control while keeping the handpiece rugged and responsive. With two handpiece outlets, an auxiliary rotary tool outlet, dual precision air regulators, adjustable impact speed, and an integrated air filtration system, the GraverMach AT is a versatile foundation for a professional engraving bench. Features & Benefits Airtact hand control – Adjust engraving power from the handpiece using GRS pneumatic air-logic technology. Instant hand-to-foot control switching – Select hand or foot control with a single selector knob. Precise power adjustment – Fine-tune handpiece performance for delicate engraving through heavier work. Two handpiece outlets – Connect and select between two compatible GRS handpieces. Auxiliary rotary outlet – Provides an additional connection for compatible rotary equipment. Adjustable impact speed – Control handpiece impact speed to match the engraving technique and material. Dual precision air regulators – Independently manage primary and hand-control air pressure. Integrated air filtration – Built-in filter with Quick Connect fittings helps provide clean air to the system. Foot control included – Use conventional foot control whenever preferred. Worldwide voltage compatibility – Designed for 100–240 V operation at 50/60 Hz. Professional GRS construction – Built for demanding jewelry, engraving, and stone-setting applications. Made in the USA – Manufactured by GRS in the United States. Key Specifications Brand: GRS Model: GraverMach AT® GRS Part Number: 004-965 MPN: 004-965 UPC: 196943900979 Product Type: Pneumatic Engraving System Control System: GRS Airtact Hand & Foot Control Handpiece Outlets: 2 Auxiliary Rotary Outlet: 1 Air Regulators: 2 Precision Regulators Impact Speed Control: Yes Air Filtration: Integrated air filter with Quick Connect fittings Voltage: 100–240 V Frequency: 50/60 Hz Length: 13" Width: 6" Height: 8.2" Weight: Approximately 22.7 lb. Made In: USA Specifications are based on current GRS and Micro-Tools product information. Airtact Hand Control The GRS Airtact system is one of the defining features of the GraverMach AT. Instead of relying exclusively on a foot pedal, the engraver can control handpiece power through an air-pressure control integrated into the hand control system. This provides an intuitive way to make power adjustments while keeping both hands positioned for engraving. When foot control is preferred, the selector knob allows the operator to switch back quickly. The system uses pneumatic air logic rather than adding mechanical moving parts to the handpiece, helping maintain the rugged and familiar feel of a GRS engraving setup. Hand & Foot Control in One System The GraverMach AT gives engravers the flexibility to choose the control method that best suits the job. Hand control is useful when making frequent, precise power adjustments during detailed engraving. Foot control provides traditional hands-free power management and is familiar to engravers who have used systems such as the GRS GraverMax, GraverMax SC, or original GraverMach. Switch between the two control methods using the dedicated hand/foot control selector knob. Two Handpiece Connections The GraverMach AT features two handpiece outlets, making it convenient to keep two compatible GRS handpieces connected to the system. This can reduce the need to repeatedly disconnect and reconnect handpieces when switching between engraving techniques. The handpiece selector allows the operator to choose the desired connected handpiece. Auxiliary Rotary Tool Connection An auxiliary air outlet is included for compatible rotary equipment. This expands the versatility of the GraverMach AT for engraving benches where both pneumatic impact handpieces and rotary tools are used. Ideal Applications The GRS 004-965 GraverMach AT is ideal for: Professional hand engraving Jewelry engraving Stone setting Relief engraving Fine engraving Deep engraving Decorative metalwork Precision metalworking Goldsmithing Silversmithing Engraving education and training What's Included The GRS 004-965 GraverMach AT includes: GRS GraverMach AT control unit Foot control Multi-mount air filter U.S.-style IEC electrical cord Schuko adapter Handpieces and engraving tools are selected separately based on the engraver's preferred setup. Air Requirements The GraverMach AT requires clean, dry, oil-free compressed air. GRS recommends an oil-free compressor. If an oil-lubricated compressor is used, an appropriate coalescing oil-removal filter must be installed in the air supply line. Oil or water contamination can damage the system and is not covered under the GRS warranty. Shipping Information This item must ship via UPS. Because the GraverMach AT is a high-value, precision equipment system, Micro-Tools requires UPS shipping. If checkout displays Priority Mail as an option, selecting it may delay the order while the shipping method is corrected. Frequently Asked Questions What is the GRS 004-965? The 004-965 is the GRS GraverMach AT®, a professional pneumatic engraving system featuring integrated Airtact hand control and traditional foot control. What is Airtact hand control? Airtact is GRS's pneumatic air-logic control system that allows the engraver to adjust handpiece power through hand control without adding mechanical moving parts to the handpiece. Can I use a foot pedal with the GraverMach AT? Yes. The GraverMach AT includes a foot control and allows the operator to switch between hand and foot control using the hand/foot selector knob. How many handpieces can be connected? The GraverMach AT has two handpiece outlets, allowing two compatible handpieces to remain connected to the system. Does the GraverMach AT have a rotary tool connection? Yes. The system includes one auxiliary air outlet for compatible rotary equipment. What type of compressor is required? The GraverMach AT requires clean, dry, oil-free compressed air. GRS recommends using an oil-free compressor. What voltage does the GraverMach AT use? The 004-965 is designed for 100–240 V at 50/60 Hz, making it suitable for use with the appropriate electrical connection in different regions. Does the GraverMach AT include a handpiece? The standard 004-965 package includes the GraverMach AT control unit and accessories, but handpieces are selected separately. This allows the engraver to choose the GRS handpiece best suited to their work. Is the GRS 004-965 made in the USA? Yes. The Micro-Tools listing identifies the 004-965 as Made in the United States. SHIPPING METHOD: This item must ship via UPS. During the checkout process you may be offered Priority Mail but this item must ship via UPS. If you select Priority Mail, it will only slow down the process as we will have to change the shipping method after the fact and charge the difference. We have learned the hard way to not ship fragile or high value items via Priority Mail. , SKU: 004-965 UPC: 196943900979 Brand: GRS MPN: 004-965 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. E052F^ Show more