Husqvarna VARI‑DRILL D20 107 mm Diamond Core Drill Please allow 1‑2 working days for delivery // Overview The Husqvarna VARI‑DRILL D20 107 mm is a silver‑grade diamond core drill designed for medium to heavy‑duty wet drilling in hard concrete, reinforced concrete, granite and masonry. Its universal 11/4″ UNC female connection delivers secure compatibility with professional core drill motors. Design and Build Quality Laser‑welded diamond segments attached to a robust steel barrel ensure resistance to segment loss under demanding conditions. The 11/4″ UNC female thread offers stable and precise mounting to core drill units. Key Technologies and Features Laser‑welded segments: Minimises segment loss for enhanced durability. Silver‑grade diamond mix: Optimised for fast, clean cutting in very hard materials. Universal 11/4″ UNC connection: Works with Husqvarna DM‑series and most professional core drill motors. Specifications SpecificationDetails Part number 582 00 58‑01 Diameter 107 mm Core length 500 mm Drill connection 11/4″ UNC female Coolant Wet Power range 1.5-4 kW Number of segments 9 Segment length 24 mm Segment width 3.5 mm Segment height 9 mm (+ 2 mm clearance) Performance and User Experience Contractors report rapid, precise drilling with minimal vibration, even in the hardest materials. The wet-capable design ensures extended diamond life, clean operation and adaptability across multiple core drilling scenarios. Q&A Section Q: Can this drill bit be used dry? A: Yes - it can be used wet or dry, though wet drilling extends segment lifespan and improves cutting efficiency. Q: Which drill motors is it compatible with? A: The universal 11/4″ UNC female thread fits Husqvarna DM‑series motors (DM 430, DM 700) and other standard core drilling rigs. Q: Is it suitable for making service penetrations? A: Absolutely - the 107 mm diameter and 500 mm core depth make it ideal for plumbing, ventilation and utility channel drilling.