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The Husqvarna VARI‑DRILL D20 250 mm is a premium-grade diamond core drill bit designed for demanding wet drilling projects, with support for occasional dry use. Its 11/4″ UNC female connection ensures compatibility with professional core drill motors including Husqvarna DM-series.
Featuring laser-welded diamond segments securely attached to a robust steel barrel, this bit minimizes segment loss under high-stress conditions. The stable 11/4″ UNC female thread ensures vibration-free mounting.
| Specification | Details |
|---|---|
| Part number | 582 006 801 |
| Diameter | 250 mm |
| Core length | 450 mm |
| Drill connection | 11/4″ UNC female |
| Coolant | Wet with occasional dry use |
| Power range | 1.5-4 kW |
| Number of segments | 17 |
| Segment length | 24 mm |
| Segment width | 4.3 mm |
| Segment height | ≈ 11 mm |
| Weight | approx. 9 kg |
Contractors confirm the 250 mm D20 bit delivers smooth, precise drilling in dense materials with low vibration. Wet drilling significantly prolongs segment lifespan, while occasional dry use caters to versatile jobsite needs.
Q: Can this be used dry?
A: Yes - occasional dry drilling is supported, though wet use is recommended for maximum segment longevity.
Q: Which drill motors is it compatible with?
A: The 11/4″ UNC female thread fits Husqvarna DM-series motors (e.g. DM 430, DM 700) and other standard professional core drill rigs.
Q: Is it suitable for service penetrations?
A: Definitely - its 250 mm diameter and 450 mm core depth make it ideal for plumbing, HVAC, ventilation, and utility channel drilling.
