Drill bit set Wolfcraft 77848 — 17 pieces for masonry and metal

Wolfcraft drill bit set 77848 contains 17 drill bits designed for drilling masonry and metal. The set combines metal and masonry bits with a centring tip on the masonry items and individually marked slots in the compact case (150 × 105 × 46 mm) for orderly storage and fast selection. Intended for use with compatible drills, the set covers a range of diameters to meet common repair, construction and installation tasks while offering heat- and wear-resistant coatings on the cutting surfaces for extended service life.

Advantages

The set includes both high-speed steel metal bits and coated masonry bits, providing versatility for through and blind holes in metal and stone. A centring tip improves positioning accuracy and reduces wandering when starting holes in masonry. Coatings on the cutting edges increase heat resistance and corrosion protection, while the round shank design ensures compatibility with standard drill chucks. Individually marked slots in the case keep the correct diameter readily available and support efficient workflow on site or in the workshop.

Suitable for

• Drilling holes in masonry such as concrete, brick and blocks
• Drilling holes in metal parts and sheet metal
• Furniture assembly and fitting work requiring precise pilot holes
• General repair and maintenance tasks in construction and installations

Key specifications

• Contents: 17 drill bits (combination of metal and masonry bits)
• Metal drill bits: high-speed steel (HSS) with titanium coating; diameters: 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.2 mm, 3.5 mm, 4 mm, 4.5 mm, 4.8 mm, 5 mm, 5.5 mm, 6 mm
• Masonry drill bits: coated tips (tungsten carbide) for concrete and walls; diameters: 3 mm, 5 mm, 6 mm, 8 mm, 10 mm
• Shank type: round shank for standard drill chucks
• Case dimensions: 150 × 105 × 46 mm for compact storage and transport
• Marked slots: individual diameter marking for each bit in the case

How to use

Select the appropriate drill bit for the material and required hole diameter, then insert the bit into the drill chuck and tighten securely. For metal drilling use suitable drilling speeds and apply steady pressure; for masonry drilling start with the centring tip where provided and use a hammer-drill mode if available for harder substrates. Keep the drill perpendicular to the work surface, clear debris from the hole as you progress, and allow the bit to cool during extended cutting to preserve the coating.

Usage recommendations

Use protective equipment such as safety glasses and gloves when drilling. Match drilling speed and feed to the selected bit and material: lower speeds and light pressure for larger diameters in metal, and hammer-drill mode with moderate pressure for masonry. Replace worn bits to maintain hole quality and avoid damage to the workpiece and tool.