Spade drill bit Irwin 10502806 — diameter 12 mm

Irwin spade drill bit model 10502806 with 12 mm diameter is designed for fast, flat-bottom hole drilling in wood and other soft materials. The bit features a simple, quick-change shank compatible with standard drills and quick-change chucks, enabling easy mounting and removal. Its geometry promotes efficient chip evacuation and precise hole edges for through-holes, cable and pipe routing, and general carpentry tasks.

Advantages

Double cutting spurs scribe the outside of the hole to reduce breakout and produce cleaner edges. The thicker cutting edge increases wear resistance and extends service life under repeated use. The BLUE‑GROOVE point and cutting edge improve chip removal for faster drilling and reduced clogging. The substantially reinforced shank provides added durability during heavy use and the 1/4" quick-change shank allows rapid bit changes in compatible drivers.

Suitable for

• Drilling flat-bottom and through-holes in softwoods and plywood
• Routing cables and pipes through wooden panels and studs
• General carpentry and joinery tasks
• Installing fixtures where clean entry and exit holes are required

Key specifications

• Diameter: 12 mm
• Tip/point: BLUE‑GROOVE point for improved chip evacuation
• Cutting design: double cutting spurs and thicker cutting edge
• Shank type: 1/4" quick-change shank with enlarged shank section for durability
• Material suitability: wood, plywood and other similar soft materials

How to use

Fit the 1/4" quick-change shank into a compatible drill or quick-change adapter and secure it according to the tool manufacturer’s instructions. Mark the drilling location and start at low speed to establish the hole position, then increase speed while applying steady, moderate pressure. Allow the BLUE‑GROOVE point to clear chips; withdraw occasionally if chips build up. For through-holes, support the workpiece where possible to reduce exit splintering.

Usage recommendations

Use appropriate personal protective equipment, clamp the workpiece securely, and match drill speed to material density. Replace the bit when cutting edges show visible wear to maintain hole quality and drilling efficiency.