The primary aim of this research is to perform a comparative assessment between novel dual-textured carbide tool inserts and untextured counterparts during the CNC turning operation applied to 2205 duplex stainless steel. This investigation is conducted under the conditions of nano-minimum quantity lubrication, with a specific emphasis on the mitigation of flank wear. A modern, contemporary green manufacturing technique called surface texturing is utilised to alter the surface topography of the cutting tool at the rake face, improving the wettability of cutting fluid at the cutting edge. The tool surface is textured with square and linear groove patterns using a femtosecond laser technique that promotes sustainable production. Addressing flank wear, a Jobber XL CNC turner used to turn 2205 duplex stainless steel employed dual-textured tool inserts compared with untextured tool inserts. The study was executed utilizing a twogroup approach, comprising a control group involving samples machined using untextured tool inserts and an experimental group utilizing novel dual-textured carbide tool inserts. Each group was comprised of a sample size of 20, resulting in an aggregate total sample size of 40. The Box-Behnken design methodology was employed as the experimental framework. Each experimental group consisted of a sample size of 20, resulting in a total sample size of 40, divided into two distinct groups. The experimental results show a mean flank wear of 0.321 mm for the experimental group samples and 0.261 mm for the control group samples in turning 2205 duplex stainless steel rod. The obtained p value (2-tailed) of 0.0024 (p < 0.05) from the independent sample t-test results in the CNC turning process with nano MQL machining conditions is statistically significant. Within the limitations of the investigation, the suggested novel dual textured tool insert turned samples exhibit less flank wear than the untextured tool insert turned samples (18.26%). The process is statistically significant, as evidenced by the obtained p value of 0.0024.

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