Spiral cutting drill bit Makita D-33984

The Makita D-33984 spiral cutting drill bit is a single-piece, 2 cm diameter bit designed for efficient and accurate drilling. Its helical flute geometry promotes smooth chip evacuation and reduced friction during cutting, helping maintain consistent hole quality across a range of materials. The bit is intended for general drilling applications where a spiral design improves feed and control.

Advantages

The spiral geometry provides continuous cutting action and effective chip removal, which contributes to cleaner holes and less heat buildup. Being a single-piece construction, the drill bit offers improved rigidity and reduced risk of breakage compared with multi-component designs. Its 2 cm diameter gives a balance between material removal and stability, suitable for both handheld and machine-mounted drilling operations.

Suitable for

• Drilling through wood and wood composites
• Drilling into plastics and non-ferrous materials
• General-purpose workshop and construction tasks
• DIY home projects and repair work

Key specifications

• Diameter: 20 mm
• Design: Spiral (helical) flute
• Construction: Single-piece solid bit
• Intended mounting: Handheld drills and drill presses
• Typical use: Through-hole and clearance drilling

How to use

Select the appropriate drilling speed for the material to avoid overheating and wear. Secure the workpiece and use a steady feed rate; allow the spiral flute to remove chips naturally without forcing the cut. Where applicable, use lubricants or cutting fluid for plastics or non-ferrous metals to reduce friction. After use, clean chips from the flutes and store the bit in a dry place to maintain cutting performance.

Usage recommendations

For best results, match drill speed and feed to the workpiece material, avoid excessive side loading, and replace the bit when cutting performance or hole quality declines. When drilling harder materials, consider pre-drilling a pilot hole or using progressively larger diameters to reduce stress on the bit.