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Drill S & R GM medium length standard Din 338 for drilling through and blind holes in the cast iron, nonferrous metals, plastics, structural and tool steel Hardness 250 Bhn. P>
In the production of drills used technology precision vyshlifovyvaniya working profile and a special heat treatment technique for maximum strength and rigidity. P>
drill made of high speed steel with sharpening along a conical surface. P>
8. Accuracy h p>
Drill according to S & R GM metal suitable for hand drills and other drilling equipment. P>