VERSATILE DRILLING TOOL: This 9.5mm diameter countersink with a 2.75mm pilot drill is designed for both hard and softwoods. It's ideal for Imperial screws up to 8 gauge in softwood and 6 gauge in hardwood. ADJUSTABLE HSS DRILL: Equipped with a high-quality, replaceable 2.75mm HSS (High-Speed Steel) pilot drill that's easily adjustable for different timber thicknesses and fast alignment. HARDENED TOOL STEEL CONSTRUCTION: Made from hardened tool steel, this countersink with pilot drill is ideal for reliable and consistent performance. Perfect accessory for clean finishes. IDEAL FOR COUNTERSINKS AND COUNTERBORES: This versatile tool can be used to make both countersinks and counterbores. It's especially suitable for use with Trend Snappy SNAP/PC/95T or SNAP/PC/38 Plug Cutters when you need to hide the fixings. SNAPPY QUICK RELEASE SYSTEM COMPATIBLE: The countersink fits into the Snappy quick-release system and has a 1/4 inch hex shank for a secure and easy fit with your existing setup., Weight: 0.07 Pounds, Manufacturer: Trend