*Professional best rotary concentricity of each bit tool part.
*Only do professional quality wood Spade drill bit (tool part)
*Fast drilling of big diameters. Suitable for drilling in natural hard and softwood and chipboard.
---Ideal for door locks, morticing, electrical and plumbing work.
---1/4" Hex Shank Reception(DIN3126) for direct insertion into the power tool or for secure chuck grip.
---Ground center point for accurate positioning and sharp wings for improved cutting performance.