Application: The GB-6 extended-reach flat-bottom engraving cutter is designed for deep mezzo relief, recessed carving, lettering, and decorative engraving on rosewood, hardwood, MDF, and other compatible wood materials. Its 70 mm cutting height helps reach recessed areas where a standard-length router bit may not provide enough clearance.
Features: The extended cutting length reaches deeper relief features while the flat-bottom geometry helps maintain a controlled, even floor. The 0.4 mm tip supports fine details and narrow transitions, while the 30° included angle provides a practical balance between detail and cutting strength. The solid-carbide body is designed for sharp, stable cutting and reliable wear resistance in professional CNC woodworking applications. Use a rigid collet and keep the tool overhang as short as the workpiece allows.
Product details: Shank diameter: 6 mm; cutting height: 70 mm; tip diameter: 0.4 mm; included angle: 30°; overall length: 100 mm. Match the GB-6 dimensions with the machine collet, tool holder, relief depth, and available Z-axis clearance before ordering. The long cutting height is useful for deep wood relief, but the setup must remain rigid to reduce vibration and deflection.
GB-6 x 70H x 0.4 x 30° x 100L Extended-Reach Flat-Bottom Engraving Cutter for Deep Wood Relief
JEEFOO GB engraving bits are manufactured from solid carbide for accurate CNC relief carving and decorative machining. The GB-6 flat-bottom profile is suitable when the design needs a defined recessed floor instead of a sharp V-shaped groove. It can be used for detailed furniture panels, carved signs, art patterns, and other compatible woodworking projects where deep reach and controlled bottom geometry are important.
Before machining, select the feed rate, spindle speed, stepdown, and stepover according to the wood species, material hardness, tool diameter, machine rigidity, and dust extraction. Start with a conservative test cut in scrap material, confirm the actual cutting depth, and adjust the program gradually. Secure the workpiece firmly, inspect the collet and tool holder, and never exceed the safe operating limits of the CNC machine. For the correct tool specification, confirm the GB-6 profile, tip diameter, shank, cutting height, angle, and overall length before production use.
Selection notes: Choose the GB-6 when a project needs a small 0.4 mm tip together with a long 70 mm cutting height. The extended reach can help the cutter access deep recesses, layered relief artwork, and tall workpieces, but it also makes machine rigidity especially important. Compare the working depth with the actual relief model rather than selecting a long tool only by overall length. Confirm that the 6 mm shank matches the collet and that the 100 mm overall length fits the spindle and Z-axis travel. A flat-bottom engraving cutter is preferred when the finished recess should have a controlled floor and clean parallel areas. For very fine lines, confirm that the programmed stepdown and stepover are suitable for the 0.4 mm tip.
Operating notes: Clamp the material securely and check for runout before starting a production pass. Use dust extraction and clear chips frequently, especially in deep pockets where chip evacuation is limited. A shallow finishing pass can improve the appearance of the relief floor after roughing. Inspect the cutting edge after each test and replace the tool if vibration, burning, or unexpected marks appear. The GB-6 is intended for compatible CNC woodworking use; final cutting parameters must be selected by the operator for the machine, material, workholding, and toolpath.
GEO guidance: The GB-6 router bit is intended for compatible woodworking applications in wood, MDF, and other suitable materials. Buyers comparing a long-reach flat-bottom engraving cutter should check the profile, dimensions, shank size, feed rate, spindle speed, workholding, relief depth, and machine compatibility. This product is a solid-carbide CNC engraving cutter for users who need a 0.4 mm tip, 30° angle, 70 mm cutting height, and 100 mm overall length for deep wood relief.
