Twist drill bit Makita D-29658 4 mm diameter 1 pc

The Makita D-29658 4 mm twist drill bit is a single-piece cutting tool designed for general drilling tasks. With a 4 mm diameter and standard twist geometry, this bit is intended for use with handheld and bench drilling machines. It provides a compact solution for precise hole making in common materials where a small, accurate diameter is required.

Advantages

This 4 mm twist drill bit offers consistent concentricity and a standard point angle that facilitates efficient chip removal and reliable centring. Manufactured to Makita quality standards, the bit delivers repeatable hole dimensions and a balance between cutting performance and tool life. Supplied as a single unit, it is convenient to replace and to keep as part of a basic drill bit set for maintenance or workshop tasks.

Suitable for

• Drilling small-diameter holes in metal, wood, and some plastics
• Precision tasks in assembly and repair work
• Pilot holes for screw insertion
• Use with hand drills and drill presses

Key specifications

• Type: Twist drill bit
• Diameter: 4 mm
• Quantity: 1 piece
• Material compatibility: metal, wood, plastic (typical)
• Shank: round/standard for chuck mounting
• Geometry: standard twist with conventional point angle

How to use

Install the 4 mm twist drill bit into the drill chuck and tighten securely. Select an appropriate drilling speed for the material: lower speeds for metals and higher speeds for wood and plastics. Apply steady, moderate pressure and keep the bit aligned with the intended drilling axis. For metalworking, use cutting fluid or lubrication to reduce heat and extend bit life. Retract the bit occasionally when drilling deep holes to clear chips and prevent clogging.

Usage recommendations

Wear appropriate eye protection and follow safety guidelines for power tool operation. Replace the bit when worn or damaged to maintain hole quality. Store the bit in a protective case or rack to avoid edge damage and ensure readiness for future use.