Holtest
Specification
| Range | Ind Range | Rings Incld | Remarks |
| 2-3mm | 2-2.5,2.5-3 mm | Ø2.5mm | - |
| 3-6mm | 3-4,4-5,5-6 mm | Ø4mm,Ø5mm | - |
| 6-12mm | 6-8,8-10,10-12 mm | Ø8mm,Ø10mm | with extension rod/titanium coated contact points |
| 12-20mm | 12-16,16-20 mm | Ø16mm | with extension rod/titanium coated contact points |
| 20-50mm | 20-25,25-30,30-40,40-50 mm | Ø25mm,Ø40mm | with extension rod/titanium coated contact points |
| 50-100mm | 50-63,62-75,75-88,87-100 mm | Ø62mm,Ø87mm | with extension rod/titanium coated contact points |
| 100-200mm | 100-125,125-150,150-175,175-200 mm | Ø125mm,Ø175mm | with extension rod/titanium coated contact points |
