KWB 706322 Centre Drill

Centering drill bit KWB 706322 designed for wood processing with a diameter of 22 mm. Made of tempered special steel with a welded drilling head and a patented serrated precision blade, the bit provides optimally sharpened and hardened cutting edges for precise, easy cuts and tear‑free borehole edges even at larger diameters. It has a centering tip, low sliding friction and reduced heat development. The bit is compatible with all rotary drills and hammer drills with 10 mm or 13 mm chucks and is suitable for hard and soft wood, coated chipboard, MDF boards, veneered wood and core boards. The product is supplied as a single piece in blister packaging.

Advantages

The centering drill bit features a patented serrated precision blade and hardened cutting edges for improved accuracy and clean hole edges. Its low friction design reduces heat and extends service life, delivering up to three times longer durability and significantly faster drilling compared to standard centre bits. The bit’s finish is shining with black grooves and it is compatible with common 10/13 mm chucks.

Suitable for

Key specifications

How to use

Secure the centering drill bit in a compatible 10 mm or 13 mm chuck. Mark the drilling position and hold the workpiece firmly or clamp it. Start drilling at low speed to allow the centring tip to engage, then increase speed as required while maintaining steady pressure. Use appropriate drill speed for the material and avoid excessive force to prevent overheating. After drilling, retract the bit while the drill is running briefly to clear chips if necessary.

Recommendations

For best results, use suitable clamping and a drill speed matched to the material. Apply steady, moderate pressure and allow the bit to do the cutting. If working with veneered or laminated surfaces, consider a sacrificial backing board to reduce the risk of tear‑out at the exit side.