Twist drill bit Bosch HSS hex-shank 6.8 mm

Twist drill bit Bosch HSS hex-shank 6.8 mm is a precision ground HSS metal drill designed for reliable drilling in metals and general-purpose use. The bit is manufactured to DIN 338 (Type N flute) with a 135° split-point tip and h8 diameter tolerance, and features an oxide-coated flute for reduced wear. The 1/4-inch (6.35 mm) hex shank provides a secure, slip-resistant fit for impact drivers and universal chucks; the bit is supplied in a blister for convenient storage.

Advantages

The Bosch HSS hex-shank drill bit combines high robustness for use with impact drivers and conventional drills, precision-ground geometry for clean holes, and an oxide-coated flute that improves wear resistance. The 135° split-point tip ensures active cutting and accurate centring to reduce walking at the start of drilling, while the 1/4-inch hex shank enables fast bit changes and a reliable connection in hex chucks.

Suitable for

Key specifications

How to use

Secure the 1/4-inch hex shank in the drill or impact driver chuck. Mark the drilling position and, if necessary, use a centre punch to prevent walking. Start drilling at low speed to establish the hole, then increase speed as appropriate for the material. Apply steady, moderate pressure and withdraw periodically to clear chips when drilling deeper holes. Use suitable cutting fluid when drilling hardened steels to extend tool life.

Recommendations

Use the Bosch HSS hex-shank drill bit with correct drilling speed and appropriate cutting lubricant for metal to maximise hole quality and bit lifetime. Replace the bit if the tip becomes dull or damaged to avoid poor centring and increased wear.