Drill bit Stanley STA53008-XJ 4 mm diameter 50 mm length

The Stanley STA53008-XJ 4 mm diameter 50 mm length drill bit is a precision tool intended for controlled drilling in wood, plastic and thin metal sheets. With a 4 mm cutting diameter and a total length of 50 mm, this single straight-shank bit provides a compact working length suitable for bench and handheld drills. The design focuses on accurate hole creation, efficient chip evacuation and compatibility with standard 3-jaw chucks.

Advantages

This 4 mm drill bit offers consistent diameter tolerance and a balanced cutting geometry for reduced wobble and cleaner holes. The 50 mm overall length gives adequate reach for common drilling tasks while keeping rigidity to minimize deflection. Manufactured by STANLEY to industry standards, the bit delivers durability and repeatable performance in everyday workshop and on-site use.

Suitable for

• Drilling pilot holes in wood for screws and dowels
• Making small-diameter holes in plastics and laminates
• Light metal drilling in thin sheet materials
• Precision hobby, model-making and electronics work requiring 4 mm holes

Key specifications

• Cutting diameter: 4 mm
• Total length: 50 mm
• Shank type: straight round shank (suitable for standard chucks)
• Intended materials: wood, plastic, thin metal sheets
• Finish and material: hardened tool steel (standard industry finish for general-purpose bits)

How to use

Select the appropriate drill speed for the material: lower speeds for metal, medium speeds for wood and higher speeds for plastics while avoiding melting. Secure the workpiece and centre-punch or mark the hole position to prevent wandering. Insert the bit into the drill chuck and tighten firmly. Apply steady, even pressure and allow the bit to cut; withdraw occasionally for chip removal when drilling deeper holes. Use appropriate personal protective equipment and clamp small workpieces to maintain accuracy.

Usage recommendations

For best results, use cutting lubricant or light oil when drilling metal sheets, and clean chips frequently to preserve cutting edges. Replace the bit when wear causes oversized or rough holes. Store in a dry container to prevent corrosion and maintain performance.