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Drill bit for concrete Irwin cylindrical 3 mm
Irwin cylindrical 3 mm drill bit for concrete is designed for drilling precise small-diameter holes in concrete, masonry and similar hard substrates. The 3 mm diameter provides accurate pilot holes for anchors, dowels, fasteners and wiring runs. The cylindrical shank fits rotary drills and hammer drills equipped to accept straight shanks, enabling use in a variety of construction and installation tasks.
This drill bit offers a compact diameter for minimal material removal while maintaining directional stability during drilling. Its hardened cutting edges are intended for use in concrete and masonry and deliver consistent hole size and depth control. The cylindrical shank ensures compatibility with common drill chucks that accept straight shanks, allowing fast bit changes and secure mounting for reliable performance on repetitive tasks.
Mark the drilling point and secure the work area. Select a drill or hammer drill that accepts cylindrical shanks and mount the 3 mm Irwin concrete bit securely in the chuck. Start drilling at low speed to establish the hole, then increase speed and, if available, use the hammer function for reinforced concrete or harder masonry. Apply steady, even pressure without forcing the bit, withdraw periodically to clear dust from the hole, and finish to the required depth. Clean debris from the hole before inserting anchors or fasteners.
For best results use appropriate personal protective equipment such as safety glasses, ear protection and dust mask. When drilling into reinforced concrete, proceed carefully to avoid prolonged contact with steel reinforcement; reduce hammer action or use a dedicated rebar-penetrating bit if required.
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