The 6mm flat bottom engraving bit with a 30° angle, 0.3 mm flat tip, 25 mm cutting height, and 80 mm overall length is designed for detailed CNC carving and deep-reach engraving. CNCBit supplies this solid carbide tool from Guangzhou, Guangdong for sign makers, woodworking factories, craft studios, and distributors that need stable cutting and repeatable geometry.
6mm Flat Bottom Engraving Bit Specifications
- Shank diameter: 6 mm for compatible CNC router collets.
- Included angle: 30° for fine V-carving and controlled groove width.
- Flat tip: 0.3 mm for detailed lettering and a defined groove bottom.
- Cutting height: 25 mm, with an 80 mm overall tool length.
- Tool material: solid carbide for rigidity, wear resistance, and edge stability.
Cutting Performance and Applications
The long-reach geometry supports signs, furniture decoration, molds, relief carving, small characters, logos, decorative lines, and prototype parts. Typical test materials include hardwood, MDF, plywood, acrylic, PVC, PE, nylon, cork, two-color engraving sheet, and aluminum composite panel. Actual suitability depends on machine rigidity, spindle condition, workholding, chip evacuation, and the required finish.
The 0.3 mm tip offers more strength than an extremely fine point while retaining accurate detail. The 30-degree profile changes the engraved width as cutting depth increases, so confirm the design depth before production. For dimensional work, run a short sample path and measure the finished groove rather than relying only on the nominal tool specification.
Recommended CNC Router Setup
Clean the 6 mm collet and shank before installation, insert the tool to a safe clamping depth, and minimize runout. Because the cutter has an 80 mm overall length, use only the projection needed for clearance. Excessive stick-out increases vibration and side load. Secure the workpiece on a flat spoilboard, begin with a shallow pass, and adjust spindle speed and feed according to chip formation and surface quality.
Wood and MDF require effective dust extraction. Acrylic should form clean chips instead of melted residue; if heat builds up, review feed rate, spindle speed, air flow, and cutter condition. Use several controlled passes for deep details instead of forcing the full depth at once. Always follow the CNC machine manufacturer’s safety instructions and use suitable eye, hearing, and respiratory protection.
Tool Selection and Related Engraving Bits
Select a cutter by the smallest design detail, required depth, material, and available clearance. A shorter tool is generally more rigid when deep reach is unnecessary. Browse our GA flat bottom engraving bits for other shank sizes, angles, tips, and lengths. For general terminology, see this independent overview of numerical control.
Guangzhou CNC Engraving Tool Supplier
CNCBit supports buyers in Guangzhou and across Guangdong, including Foshan, Dongguan, Shenzhen, and nearby manufacturing areas, as well as export customers. Send the machine model, collet size, material, target groove width, cutting depth, and quantity for a practical compatibility check. Local buyers searching for a Guangzhou CNC engraving bit supplier can also request sample and bulk-order information.
Frequently Asked Questions
Why choose an 80 mm long engraving bit?
The longer body provides clearance for recessed areas and deep-relief work. Use the shortest safe projection because increased reach can reduce rigidity.
Can the 0.3 mm tip cut hardwood and acrylic?
It can process compatible materials with tested parameters. Start with shallow passes, secure the workpiece, and adjust for clean chips and low vibration.
Contact CNCBit for specifications, samples, or bulk pricing on the 6mm flat bottom engraving bit. The Guangzhou technical team can help confirm whether this 30° long-reach cutter matches your CNC application.
For consistent batch work, inspect the cutting edge after each material change and record the proven machining parameters. Remove resin or compacted chips with a suitable non-damaging cleaning method, keep the collet free of dust, and replace any cutter that shows a chipped tip. These checks help maintain line width, bottom finish, and dimensional repeatability across local Guangdong production orders.
