Drill bit set Makita B-49921

The Makita B-49921 drill bit set provides a selection of precision-engineered bits intended for general drilling needs. Designed with durable materials and consistent manufacturing tolerances, the set is suitable for work in a variety of common materials and for use with most handheld and stationary drills. The set aims to deliver accurate hole placement and long service life under normal operating conditions.

Advantages

The bits in this set are manufactured to ensure consistent tip geometry for reliable centring and reduced walking. Robust construction increases resistance to wear and heat, extending cutting life during repetitive use. Compatibility with a wide range of drill chucks and drivers makes the set flexible for different jobs, while precise machining helps produce clean hole edges and accurate diameters.

Suitable for

• Drilling holes in wood for furniture assembly and carpentry
• Working with plastic components and panels
• Light- to medium-duty metal drilling where appropriate bits are selected
• General home improvement and repair tasks

Key specifications

• Set type: multipurpose drill bit set suitable for handheld and bench drills
• Material: hardened and heat-treated drill steel for improved wear resistance
• Tip design: precision-ground tips for accurate centring and reduced bit walking
• Finish: protective surface treatment to reduce corrosion and friction
• Compatibility: designed for standard drill chucks and common bit holders

How to use

Select the appropriate bit from the set for the material and hole size required. Secure the bit firmly in the drill chuck or holder, checking for correct alignment to avoid wobble. Use steady, controlled speed and consistent feed pressure appropriate to the material: lower speeds for metals and higher speeds for wood and plastics. Apply cutting fluid or appropriate lubrication when drilling metals to reduce heat and prolong bit life. After drilling, remove chips and inspect the hole for burrs; deburr if necessary.

Usage recommendations

When using the drill bit set, match bit type and speed to the workpiece material, wear appropriate eye protection, and clamp workpieces securely. Store the bits in their case to prevent damage and maintain tip geometry between uses.