DIAGER 20-Piece Multi-Material Drill Bit Set Concrete Wood Metal 5017A

Professional Concrete Drill Bits

This set includes 4 concrete drill bits equipped with ultra-resistant carbide inserts featuring semi-positive sharpening. The double rolled helix with land ensures rapid dust evacuation, while the micro-blasted finish improves penetration. The optimized head geometry guarantees high drilling speed on construction sites. Compatible with stone, brick, concrete block and plasterboard.

HSS Metal Drill Bits

The 4 HSS metal drill bits, ground and sharpened, offer remarkable versatility for drilling non-alloy and alloy steels up to 900 N/mm², as well as lamellar and spheroidal graphite cast irons. Technical features: point angle 118°, type N helix, diameter tolerance h8, maximum shank 12.7 mm. Compliant with DIN 338 standard. Precise starting and generous working length for deep drilling.

Wood Drill Bits

The 12 wood drill bits cover all types of wood: soft, hard, laminated, chipboard and plywood. Each bit features a self-centering point, two cutting edges and a wide polished land for exceptional precision and cutting cleanliness. Ideal for furniture restoration.

Kit Contents