Name: 20x65Hx115L One Flute Spiral Carbide Engraving Bits with Climb Milling for Aluminum Alloy 55HRC High Steel Speed Coating
Brand: JEEFOO

55HRC High Steel Speed Coating – 20x65x115 Carbide Bit

The 55HRC high steel speed coating on this 20x65x115 one-flute spiral carbide bit from JEEFOO in Guangzhou, China are coated solid-carbide single-flute CNC cutting tool for climb milling and profiling in aluminum alloy and compatible non-ferrous materials. Its 20 mm diameter and 65 mm cutting height support stable profiles and pockets, while the open spiral flute provides space for chip evacuation.

Product specifications

Cutting diameter: 20 mm
Cutting height: 65 mm
Overall length: 115 mm
Geometry: one spiral flute
Material: wear-resistant tungsten carbide

Applications for fine CNC work

Small lettering and detailed sign engraving
Narrow grooves in acrylic and PVC sheet
Fine profiles in MDF, plywood and double-color board
Precision trimming of compatible plastic components

Why use one spiral flute?

A single cutting edge leaves a relatively large flute space for chips. Efficient evacuation helps reduce recutting, rubbing and heat, especially in plastics. Because the cutting diameter is only 1 mm, stable clamping, low runout and controlled engagement are important. Avoid heavy full-width cuts that can deflect or overload the tool.

CNC setup guidance

Clean the collet and 3.175 mm shank before installation. Keep overhang as short as the required reach permits, secure the workpiece and verify clearance around clamps. Begin with conservative spindle speed, feed and depth per pass. Observe chip shape, sound, spindle load and surface quality before adjusting parameters.

Use dust extraction or a machine-approved air system to remove chips. When cutting acrylic or PVC, maintain a feed that creates chips instead of melted residue. When machining wood products, good extraction reduces recutting and keeps the narrow flute clear. Always test a new material on scrap before production.

Tool care and ordering checks

Confirm the shank, cutting diameter, cutting length and overall reach before ordering. After use, remove debris and inspect the edge under good light. Stop if the tool is chipped, bent or producing abnormal vibration. Record successful parameters for repeat work rather than relying on settings from a larger cutter.

JEEFOO manufacturing in Guangzhou, China

JEEFOO supplies CNC router and engraving tools from Guangzhou, China, for sign makers, workshops, distributors and machine users. Standard or customized dimensions can be reviewed according to material, machine and application. Browse more JEEFOO CNC cutting tools or review general router machining information when planning a new process.

Frequently asked questions

What does 3.175×1.0x4 mean?
It identifies a 3.175 mm shank, 1.0 mm cutting diameter and 4 mm cutting length.

Which materials are suitable?
Acrylic, PVC, MDF, double-color sheet, plywood and selected plastics or wood products are typical after a cutting test.

Can JEEFOO provide another size?
Yes. Provide the material, machine, required dimensions and quantity for technical review.

The 55HRC high steel speed coating is intended to improve wear resistance during controlled CNC machining. Select feeds, speeds, coolant or air blast according to the workpiece, machine rigidity and actual coating specification.