The use of wood drill bit

1. Try using a short edge of wood drill bit, blade edge is too long or too long will cause vibration and deflection, resulting in damage to the tool. 2, we recommend using a shank diameter of wood drill bit. 3, the normal use, an appropriately sized jacketed is very important, old ones, there is a cross-sectional, not round, severe wear and drill bits for wood jacket tapered bore, can not provide sufficient clamping force, resulting in flying off, vibration or broken hilt. Also, do not think that the case must be reliable new jacket. When the handle was found after wood drill bit contact marks or uneven grooves, indicating a slip case and wood sds plus auger bit jacket bore distortion, then the need to immediately replace the jacket.