In-Groove™ Interchangeability
Swap between 30 distinct profile configurations on the same tool body while maintaining exact CNC datum accuracy.
Amana Tool Engraving Knife Core Box R4 x H8mm
CA$999.99
Out of stock
SKU
RCK-426
Product Type
Solid Carbide Core Box Insert Engraving Knife
Family / Category
In-Groove™ CNC Insert Engraving Tool System
Profile Configuration
Core Box / Round Nose Detailing Profile
Cutting Radius
5/32 inch (4mm equivalent)
Cutting Height
8mm (5/16 inch)
Performance Plunge
80 inches per minute feed rate
Cutting Material
Micrograin Solid Carbide
System Compatibility
Fits tool bodies RC-1075,RC-1076,RC-1077,RC-1078
Applications
CNC signmaking,fine fluting,detailing,and 2D lettering layout
Solid Carbide
Core Box Insert Engraving Knife
Insert Knife
Amana Tool RCK-426 is an authentic industrial solid carbide core box replacement insert engraving knife precision engineered for the In-Groove™ CNC insert engraving system, featuring a 5/32-inch radius, an 8mm (5/16") cutting height, and a manufacturer-specified plunge feed of 80 inches per minute.
5/32 inRadius (R)
8mmHeight (B)
80 IPMPlunge Feed
In-Groove™System Fit
Insert Knife
A professional micrograin solid carbide profile replacement insert knife for precision signmaking, lettering, and fine detailing. Its dedicated official page catalogs it under the In-Groove™ CNC Insert Engraving Tool Body & Replacement Knives system.
Amana ToolSolid CarbideCore BoxSKU RCK-426
Exclusively compatible with Amana Tool In-Groove™ tool bodies including RC-1075 (1/4" shank), RC-1076 (1/2" shank), RC-1077 (6mm shank), and RC-1078 (12mm shank). Engineered for quick insert exchange directly on the CNC machine to protect alignment accuracy.
Main Product Description
Amana Tool RCK-426 is the exact manufacturer code listed on its official product page. The verified technical specification grid dictates an exact 5/32-inch radius profile matched with an 8mm (5/16") cutting height. Constructed from high-performance industrial solid carbide, this insert knife produces crisp, clean profile outlines and delivers an operational lifespan extending up to twice as long as traditional solid carbide carving bits.
The In-Groove™ system architecture enables operators to rapidly exchange insert configurations while the primary steel tool holder remains securely mounted within the CNC spindle. This design strategy minimizes technical downtime, preserves strict reference zero coordinates, and maintains rigid cutting accuracy across high-volume production setups.
Official technical references list a dedicated plunge rate performance mark of 80 inches per minute. This industrial knife is designed as an interchangeable component sold individually; matching tool holder bodies must be acquired separately. Always clean insert seating faces during setup to maintain optimal geometric indexing.
Technical Specifications
In-Groove™ System Component · SKU RCK-426
- Amana Tool
- Solid Carbide Insert Engraving Knife
- RCK-426
- Signmaking & Engraving CNC Router Bits
- In-Groove CNC Insert Engraving Tool Body & Replacement Knives
- Core Box / Radius
- 5/32 inch (4mm equivalent)
- 8mm (5/16 inch)
- 80 Inch/Min
- Solid Carbide
- 1
- RC-1075 / RC-1076 / RC-1077 / RC-1078
- Machine Fit: CNC Routers / Spindles
- Exclusively compatible with Amana Tool In-Groove™ tool bodies including RC-1075 (1/4" shank), RC-1076 (1/2" shank), RC-1077 (6mm shank), and RC-1078 (12mm shank). Engineered for quick insert exchange directly on the CNC machine to protect alignment accuracy.
Best Fit Applications
MDF & Particleboard Carving
Hardwood & Softwood Signmaking
Laminated Panel & Veneer Etching
Plastics & Acrylic Engraving
Solid Surface & Phenolic Routing
Product Highlights
Industrial Solid Carbide
High-density micrograin construction produces flawlessly smooth finishes and holds sharp profiles twice as long as standalone bits.
Dedicated Core Box Geometry
Features a calibrated 5/32" (R4) radius paired with an 8mm height optimized for fluting, details, and sign lettering.
Compatibility & Installation Notes
Verify model number RCK-426 matches your application. This product is a replacement cutting insert and does not include the primary mechanical steel shank holder. It requires an official In-Groove™ CNC system tool body (RC-1075, RC-1076, RC-1077, or RC-1078) for safe operational deployment. Ensure the locking screw torque settings match system instructions, and clear away accumulated resin or chip dust from internal seating pockets before tightening the insert.
Precision Fluting and Clean Lettering via the In-Groove™ System
The Amana Tool RCK-426 brings production-grade solid carbide endurance to detail carving. By offering an exact 5/32" radius and 8mm height profile, it delivers reliable detailing performance across composite woods, plastics, and laminates.
Integrate this exact profile insert within your In-Groove™ workflow to optimize tool lifecycle, eliminate re-homing procedures, and boost automated throughput on your CNC layout.