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Drill S & R GM average length of Din 338 standard 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 precision vyshlifovyvaniya working technology profile and a special heat treatment technique to provide maximum strength and stiffness. p>
drill made of p>
accuracy h 8-speed steel with sharpening of tapered surfaces.. p>
Drill by S & R GM metal suitable for hand-held drills and other drilling equipment. p>