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Drill bit Vorel 03240 — 1 pcs pack
Vorel 03240 — single-piece crown drill designed for creating 65 mm diameter openings in masonry and concrete. This pack contains one crown drill with a replaceable central pilot and a hex shank for secure mounting in drill chucks or holders with an M-16 thread interface. The tool is intended for professional and DIY applications where a precise circular hole for mounting electrical boxes or similar fittings is required.
The crown drill is fitted with six cutting tiles made of high-quality sintered carbide, brazed to a steel body with brass for reliable cutting performance and resistance to wear. An 8 mm replaceable pilot drill provides stable centre guidance while the milled outer surface helps evacuate material from the hole during drilling. The 13 mm hexagon shank and M-16 thread connection ensure firm fixation in compatible chucks and adaptors.
Securely mount the crown drill in a compatible drill or adaptor that accepts a 13 mm hex shank and M-16 thread connection. Mark the drilling location and, if possible, use a centre punch to position the pilot drill. Start drilling at low speed to engage the pilot, then increase speed and apply steady pressure appropriate for masonry drilling. Periodically withdraw the bit to clear debris and maintain cooling. Replace the pilot drill when worn to preserve accuracy.
Use appropriate personal protective equipment including safety glasses, hearing protection and dust mask. For best results in reinforced concrete or very hard masonry, use a hammer drill or rotary hammer capable of accepting the adaptor and crown drill, and take care to avoid overheating the carbide tips.
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