Micro 100's TH / THM / THMA tool holders, which are heat treated and black oxide coated to promote strength and longevity, enable tool engagement and holder orientation flexibility by 4 alignment flats on the shank.
| Finish/Coating | Uncoated |
| Shank Diameter (mm) | 22 mm |
| Metric (Yes/No) | Yes |
| Overall Length (Inch) | 2.75" |
| Tool Holder Bore Diameter (Inch) | 0.2500" |
| Tool Holder Collar Diameter (mm) | 27 mm |