8x70x120 Two Straight Flute Bits for Deep CNC Routing
The 8x70x120 Two Straight Flute Bits are long-reach solid carbide CNC cutters for routing EVA foam, MDF, plywood, hardwood, laminated board, acrylic, PVC and other compatible sheet materials. Two straight cutting edges provide balanced cutting action, while the open flute geometry supports chip evacuation in grooves, pockets and profile cuts.
Product dimensions and geometry
- Cutting diameter: 8 mm
- Cutting length: 70 mm
- Overall length: 120 mm
- Cutting geometry: two straight flutes
- Tool material: wear-resistant carbide
Why use a long straight-flute cutter?
The 70 mm cutting length and 120 mm overall reach allow the tool to machine deeper features and thicker workpieces than a short router bit. Straight flutes are useful when a neutral cutting action is preferred and when the workpiece must not be strongly lifted or pressed down. Because long tools are more sensitive to vibration, the machine, holder and cutting parameters must provide adequate rigidity.
Recommended CNC applications
- Deep profile cutting in EVA foam and engineering plastics
- Grooving and pocketing in MDF, plywood and composite panels
- Machining thick acrylic or PVC sheet after a parameter test
- Sign making, pattern work and CNC engraving operations
Setup and cutting guidance
Clean the collet and shank before installation, minimize tool overhang and confirm the 8 mm shank is compatible with the holder. Secure the material firmly and verify clearance for the full 120 mm tool length. Start with conservative spindle speed, feed rate and depth per pass. Increase productivity only after checking sound, spindle load, chip shape and surface quality.
Efficient chip removal is especially important in deep slots. Use dust extraction or an air system suitable for the machine and material. Do not allow chips to pack around the cutter, because recutting can raise temperature and shorten tool life. For foam and plastics, adjust feed so the cut produces chips instead of melted residue.
JEEFOO manufacturing in Guangzhou, China
JEEFOO manufactures CNC router tooling in Guangzhou, China, for workshops, distributors and industrial buyers. Standard and customized dimensions are available according to material, machine and required reach. Browse more JEEFOO CNC router bits and review general computer numerical control information when planning a new process.
Frequently asked questions
What does 8x70x120 mean?
It identifies an 8 mm cutting diameter, 70 mm cutting length and 120 mm overall tool length.
Why should long-reach tools use lighter cuts?
A longer tool has more leverage and can deflect more easily, so moderate engagement helps control vibration and finish.
Can JEEFOO recommend parameters?
Yes. Provide the workpiece material, CNC machine, spindle speed range, depth and desired finish for application review.
Two Straight Flute Bits for CNC Cutting
Jeefoo Tools CNC router bit, straight router bits and woodworking bits for MDF, Polywood, Formica and laminated board, A series.
Specification
- Brand: JeeFoo Tools
- Name: Two Flutes Straight Carbide Cutters
- Tool Materials: top-quality tungsten carbide
- Size: 8x70x120
Main Application
2D engraving and cutting for foam, EVA board, multi-layer board, plywood, MDF, composite boards, hard wood, organic plates, PVC, acrylic, double-color board and ABS.
Features
- Sharp cutting edge without burrs and with excellent chip removal.
- Special design combines a hard cutter body and high-class cutting edge for durability and resistance to breakage.
