Grinder, Needle Grinder, Precision Micro-Molding Machine, Grinding Machine, Electric Grinder
Mini Grinder, 5μ Precision Standard Model
Precision: 5μm (0.005mm)
Guide wheel hardness: HRC 60–62°
Grinding wheel material: SKS3
Grinding wheel clamping range (diameter): 0.5–12mm
Minimum clamping length for grinding wheel: 10mm

Mini Grinder, 3μ Precision Premium Model (i.e., 2μ Precision Model)
Precision: 3μm (0.003 mm, often labeled as 2μm class)
Guide wheel hardness: HRC 60–62°
Roller material: SKS3
Roller clamping diameter range: 0.5–12 mm
Roller runout precision: ≤0.003 mm

Mini Grinder, 1μm Precision High-Precision Model
Precision: 1μm (0.001mm)
Guide wheel hardness: HRC 60–62°
Grinding wheel material: SKS3
Grinding wheel clamping range (diameter): 0.5–12mm
Grinding wheel runout precision: ≤0.001mm

Genuine Jingzhan Mini Grinder (PGAS Model)
Accuracy: ≤0.002 mm (factory standard)
Guide wheel hardness: HRC 60–62°
Roller material: SKS3
Roller clamping range (diameter): 0.5–12 mm
Roller runout accuracy: ≤0.002 mm

Electric Mini Grinder
Accuracy: 5 μm (0.005 mm, Basic Model) / 3 μm (High-Spec Model)
Drive Type: Motor-driven (stepless speed control)
Guide Wheel Hardness: HRC 60–62°
Roller Material: SKS3
Roller Clamping Range (Diameter): 0.5–12 mm

Solid-Wheel Mini Grinde r (Groove-less Roller Model)
Accuracy: ≤0.003 mm
Guide wheel hardness: HRC 60–62°
Roller material: SKS3 (groove-less solid roller)
Roller clamping diameter range: 4–12 mm (compatible with larger-sized punches)
Manual Punch Grinder (3μ Model)
Accuracy: 3μm (roller runout / clamping accuracy within 5μm, nominal 3μ grade)
Roller clamping diameter: 1.5–25 mm
Roller clamping length: 22–100 mm
Roller material: SUS440
Hardness: HRC 58–62°

Manual Punch Grinder (1μ Model)
Accuracy: 1μm class (roller runout / clamping accuracy within 5μm, nominal 1μ class)
Roller clamping diameter: 1.5–25 mm
Roller clamping length: 22–100 mm
Roller material: SUS440
Hardness: HRC 58–62°

Manual Punch Grinder (8μ Model)
Accuracy: 8μm (roller runout / clamping accuracy within 8μm)
Roller clamping diameter: 1.5–25 mm
Roller clamping length: 22–100 mm
Roller material: SUS440
Hardness: HRC 58–62°

Manual Punch Grinding Machine (5μ Model)
Accuracy: 5μm (roller runout / clamping accuracy within 5μm)
Roller clamping diameter: 1.5–25 mm
Roller clamping length: 22–100 mm
Roller material: SUS440
Hardness: HRC 58–62°