Types segmentation distinguishes power source, burr kinematics, and disposability, shaping both ASP and service revenue. Electric (micro) drills hold >55 % share; brushless DC motors with closed-loop speed control deliver ≤60,000 rpm while keeping below 45 °C at the cutting interface, meeting most neuro and ENT protocols. Pneumatic (air) micro drills, though lighter, are restricted to ≈25 % share by hospital compressed-air infrastructure and noise regulations. Battery-powered units—growing at 8 % CAGR—target outpatient centres where tethering compromises ergonomics; however, lithium-ion cycle degradation adds 7–9 % annual recurring revenue via battery packs. Within each type, subtypes by burr attachment (quick-coupling vs. collet) and disposability (sterile single-use vs. autoclavable) further fragment pricing; single-use burrs yield 35 % higher gross margin but face sustainability scrutiny, influencing procurement tenders and, ultimately, market taxonomy share allocation.