Drill bit set Hikoki RB77850 — 15 pcs, for metal

Hikoki RB77850 is a 15-piece drill bit set designed specifically for drilling metal. The set includes a range of standard sizes for common metalworking tasks and is supplied in a compact case with individually marked slots that keep each bit organized and easy to identify. The bits feature a centring tip to reduce walking and help create clean, accurately positioned holes for fastening, fabrication and maintenance work.

Advantages

The set provides a complete size range for many metal drilling applications in one compact kit. Bits are made for metalworking and include a centring tip for precise starts, which helps prevent hole drift and improves the finish of through and blind holes. The case with labelled slots simplifies bit selection and storage, and the round shank design enables fast insertion into drill chucks of standard drills.

Suitable for

• Drilling holes in metal parts for assembly and fastening
• Machine maintenance and repair involving metal components
• Fabrication tasks that require a set of common drill sizes
• Workshop and on-site jobs where organized, portable drill bits are needed

Key specifications

• Number of pieces: 15
• Intended material: metal
• Tip type: centring tip for accurate positioning
• Shank type: round shank for standard drill chucks
• Bit diameters included: 1.5 mm (×2), 2.0 mm (×2), 2.5 mm (×2), 3.0 mm, 3.2 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 6.0 mm, 8.0 mm, 10.0 mm
• Pack dimensions: 105 × 46 × 150 mm

How to use

Select the drill bit with the required diameter from the case and insert the round shank into the drill chuck, tightening it securely. Mark the drilling point on the metal surface and use the centring tip to position the bit accurately. Start drilling at low speed to establish the hole, then increase speed and apply steady pressure suitable for the drill and material. Use cutting fluid where appropriate to reduce heat and wear when drilling thicker or harder metal.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves) and secure the workpiece before drilling. For best results and longer tool life, apply cutting fluid when drilling harder metals and avoid excessive force or high speeds that can overheat the bits.