FIXMAN Twist Drill Bit R0105-R0124
The FIXMAN Twist Drill Bit Set R0105-R0124 is a precision high-speed steel (HSS) twist drill bit series with diameters from 3.0 mm to 10 mm, designed for accurate drilling in metal, plastic, wood, and PCBs—ideal for electronics assembly, hobby modeling, and fine mechanical work.
| No. | Size |
| R0105 | 3x33x61 |
| R0113 | 5x52x86 |
| R0115 | 6x57x93 |
| R0120 | 8x75x117 |
| R0124 | 10x87x133 |
Made from high-quality High-Speed Steel (HSS) with enhanced cobalt or heat treatment—retaining sharpness at high RPMs and resisting wear when drilling steel, brass, aluminum, and other metals.
Includes incremental sizes from R0105 (3.0 mm) to R0124 (10 mm)—often in 0.1 mm steps—enabling exact hole matching for screws, pins, PCB vias, and micro-assembly tasks.
Each bit is fully ground (not rolled) for superior concentricity and dimensional accuracy (typically ±0.01–0.02 mm)—critical for precision engineering and electronics work.
The FIXMAN Twist Drill Bit Set R0105-R0124 is widely used for drilling precision holes in PCBs, installing electronic components, repairing watches or eyeglasses, crafting scale models (e.g., drones, RC cars), and assembling micro-hardware—delivering accurate, clean holes in metal, plastic, wood, and composite materials.








