Bits for Haglof increment borers are available in a variety of lengths in both 4.3mm and 5.1 mm diameters. To determine the correct length of bit, measure from the threaded cutting tip along the length of the round tube. Don't include the square part at the other end of the bit.
Bits are approximately 1.5" to 2" shorter than the handle. Bits shown below are our standard three thread style. Two thread style replacement bits are available as a special order.