Brúsna pomôcka kwb brúska na vrtáky kov modrá sivá červená 192 mm

The kwb Drill Grinding Attachment is a metal sharpening aid designed for HSS twist drills with diameters from 3.5 to 10 mm. It produces a 118° tip angle and is made to accept drills fitted with a 43 mm Euro-collar. With a compact length of 192 mm, the attachment is intended to restore cutting edges on worn drills and maintain drilling performance.

Advantages

The metal construction provides durability and stable clamping during sharpening. The unit produces a precise 118° point suitable for general-purpose drilling. Its compatibility with HSS drills from 3.5 to 10 mm and the 43 mm Euro-collar ensures it fits common workshop drills. The compact size makes it easy to position and store.

Suitable for

Key specifications

How to use

Mount the grinding attachment on a compatible drill sharpening machine or holder designed for a 43 mm Euro-collar. Fit the HSS drill (3.5–10 mm) into the clamping system and align according to the machine instructions so the tool will produce the 118° tip. Slowly engage the grinding wheel and advance the drill until the desired geometry and sharpness are achieved, checking progress frequently to avoid overheating or over-grinding.

Recommendations

Use appropriate personal protective equipment (safety glasses and gloves) and follow the sharpening machine manufacturer’s safety and operational instructions. Cool the drill if necessary to prevent loss of hardness when regrinding HSS materials.