Star-M Extended-length softwood auger bits, 1"

Star-M 4L Series is a range of ten extended-length auger drill bits for deep boring in softwood, from 10mm to 25mm in diameter. The bit maintains high precision, reduces lateral vibration, has a burr-free lead screw for quick, on-target starts and smooth cutting, and is made from high carbon steel for use with an electric power drill. The metric diameter is shown for every part number.

Where this product is used

• Boring deep holes in softwood, deeper than 240mm
• Drilling with an electric power drill

Features

• Recommended for deep boring over 240mm
• Burr-free lead screw for quick, on-target starts and smooth cutting
• Made from high carbon steel
• Ten diameters from 10mm to 25mm, with the imperial size shown for each

Key specifications

Choosing the right option

Choose by hole diameter. For shallower holes in softwood see the 4S Series standard-length auger drill bits or 6 Series short-length auger drill bits; the 18, 22 and 24mm sizes are also sold together as the 4L Series extended-length auger bundle.

See also: 4S Series standard-length auger drill bits, 6 Series short-length auger drill bits, 4L Series extended-length auger bundle, 8L Series long hardwood auger drill bits.