Spade drill bit Irwin 10507907 8 mm 1 pc

Irwin spade drill bit 8 mm is a single-piece flat-blade bit designed for drilling clean, straight holes in wood and similar soft materials. The 8 mm diameter and spade profile allow for fast chip removal and efficient through-holes with minimal walking when used with a steady hand or a guide. This bit is compatible with standard hand drills and drill drivers for general woodworking, installations and repair tasks. For best results in brittle materials such as glass, bottles, porcelain and ceramics, rotary drilling only is required at low speed with water cooling; do not use hammer action.

Advantages

The spade design provides rapid material removal and a simple geometry that is easy to sharpen. Being a single-piece construction increases bit rigidity and reduces wobble for straighter holes. The 8 mm diameter is suitable for dowels, small cable passages and pilot holes for larger work. The flat cutting face and central point help position the bit and reduce lateral drift during drilling in soft substrates.

Suitable for

• Drilling through softwoods and hardwoods for carpentry and joinery
• Making holes for dowels, bolts and cable routing
• General installation and repair work with hand drills and drill drivers
• Rotary drilling of glass, bottles, porcelain and ceramics at low RPM with water cooling

Key specifications

• Type: spade (flat) drill bit
• Diameter: 8 mm
• Construction: single-piece steel bit
• Intended materials: wood and similar soft materials; rotary-only use for brittle materials
• Recommended speed: low RPM (approximately 300 RPM for brittle materials)

How to use

Secure the workpiece and mark the drilling position. Mount the spade bit in the drill chuck and ensure it is tightened firmly. For wood and similar materials, use normal drilling speeds appropriate to the material and apply steady pressure. For drilling brittle materials such as glass, bottles, porcelain and ceramics, use rotary action only at low speed (around 300 RPM), keep the bit cooled with water during cutting, and avoid any hammering or percussive force. Use a backing support where possible to prevent chipping on the exit side.

Usage recommendations

Use with a stable drill and, when working with brittle materials, operate at low RPM with continuous water cooling and no hammer action. For cleaner holes in wood, consider using a guide or pilot hole and inspect the bit for wear, sharpening or replacing it when cutting performance declines.