Alpha Tungsten Carbide Countersink Drill Bits with Depth Stop – 90°

Description

Tungsten Carbide Countersink Drill Bits – Precision Countersinking with Depth Control

These tungsten carbide countersink drill bits are designed for fast, accurate drilling and countersinking in one operation. Featuring a carbide tipped pilot drill and integrated countersink, they deliver clean, consistent holes with improved chip extraction and reduced cycle times.

The adjustable depth stop allows for precise control, ensuring flush mounting or deeper countersinking to suit plugs and finishing requirements—ideal for decking and fibre cement applications.

Applications

• Timber decking installation
• Fibre cement / cement sheet fixing
• Pre-drilling and countersinking in one step
• Flush screw installation
• Plugged timber applications

Features & Benefits

• Tungsten carbide tipped pilot drill for durability
• Combined drilling and countersinking saves time
• Adjustable depth stop for consistent results
• Improved chip extraction for faster drilling
• Suitable for high feed rates and reduced cycle times
• 90° countersink angle for standard screw heads
• Three flute design for smooth cutting
• Supplied with hex key for adjustment and maintenance

Variations

Sizes Available:

2.0mm (5/64″) | AS02004
2.4mm (3/32″) | AS02404
2.8mm (7/64″) | AS02804
3.0mm | AS03004
3.2mm (1/8″) | AS03204
3.5mm (9/64″) | AS03504
4.0mm (5/32″) | AS04004
5.0mm | AS05004

Technical Specifications