Drill bit Irwin 10506620 lip drill bit Ø16 mm, 1 pc

Irwin 10506620 lip drill bit Ø16 mm is a single-piece cutting tool designed for drilling clean, accurate holes in a range of general-purpose materials. With a 16 mm cutting diameter and 165 mm overall length, this lip-style drill bit combines cutting spurs, a full screw tip and a tapered flute to reduce binding, speed chip ejection and minimise breakout for neat holes. The single-piece construction with full-length heat treatment improves durability for repeated use with standard hand drills and drill presses.

Advantages

The lip cutting geometry and cutting spurs provide cleaner hole edges and reduced splintering when working with wood and similar materials. The full screw tip assists in automatic pull-through and steady advance into the workpiece, reducing walking at the start of the hole. Tapered and tri-flute design promotes efficient chip removal to maintain cutting speed and reduce clogging, while full-length heat treatment enhances wear resistance for longer service life.

Suitable for

• Drilling clean holes in wood and wood-based panels
• General-purpose drilling in plastics
• Workshop tasks with standard hand drills and drill presses
• Projects requiring minimal breakout and neat hole edges

Key specifications

• Cutting diameter: 16 mm
• Overall length: 165 mm
• Type: lip (single lip) drill geometry with cutting spurs
• Tip: full screw tip for self-feeding
• Flute design: tapered tri-flute for improved chip ejection
• Construction: single-piece tool with full-length heat treatment for durability
• Pack quantity: 1 piece

How to use

Select an appropriate clamp or vice to secure the workpiece and mark the drilling location. Fit the drill bit into a compatible drill chuck, ensuring it is seated securely and running true. For wood and plastics, start at low to moderate speed to establish the hole, allowing the full screw tip to pull the bit through; increase speed as appropriate while maintaining control. Clear chips periodically if working deep holes and avoid excessive side-load or lateral force to prevent chipping or breakage. After use, clean debris from the flutes and store the bit dry to maintain its condition.

Usage recommendations

Use cutting lubricant only when drilling certain plastics or composite materials as recommended; for standard wood applications no coolant is required. Match drill speed and feed to the material—slower speeds for hardwoods and higher speeds for softer woods—to extend tool life. Inspect the cutting edges before use and replace the bit when wear affects hole quality.