Spade drill bit Irwin 10502820, 32 mm diameter, for wood

Irwin spade drill bit 10502820 with a 32 mm diameter is designed for fast and efficient drilling in soft and hardwoods. The flat spade profile and reinforced cutting edge enable rapid material removal for through-holes and rough boring tasks. The bit features double cutting spurs to reduce breakout at the hole perimeter, a thicker cutting edge for extended life, and a point and cutting geometry that speeds chip evacuation. The bit is supplied with a 1/4" quick-change hex shank for compatibility with handheld and bench drills used in carpentry, electrical and plumbing installations, and general woodwork.

Advantages

This Irwin spade bit combines features aimed at durability and faster drilling. Double cutting spurs mark the outside of the hole to minimise breakout, while the thicker cutting edge increases resistance to wear during repetitive use. The BLUE-GROOVE point and cutting edge accelerate chip removal to maintain drilling speed. A 10% larger shank and a 1/4" quick-change hex shank improve grip and reduce slippage in the drill chuck or quick-change adapter.

Suitable for

• Drilling through-holes in softwood and hardwood
• Rough boring for cable routing and conduit in carpentry, electrical and plumbing work
• Use with handheld drills and drill presses for general woodworking

Key specifications

• Type: Spade (flat) drill bit
• Diameter: 32 mm
• Overall length: 157 mm
• Suitable material: Wood (soft and hardwood)
• Shank type: 1/4" hex quick-change

How to use

Secure the spade bit in a compatible drill or quick-change adapter ensuring the hex shank seats fully. Mark the drilling position on the workpiece and, if needed, use a center punch or pilot mark to guide the bit. Start drilling at low speed to establish the cut, then increase speed moderately while applying steady axial pressure. For through-holes, support the workpiece to reduce exit splintering and withdraw the bit occasionally to clear chips if drilling deep holes. Allow the bit to cool between prolonged runs to preserve the cutting edge.

Usage recommendations

Use personal protective equipment, including eye protection and hearing protection. Clamp workpieces securely and avoid excessive lateral force on the bit. For cleaner hole edges, back up the exit side with sacrificial material. Replace the bit if the cutting edge becomes excessively worn or damaged to maintain performance and safety.