Stoneware Silver Core Bit

For porcelain stoneware and ceramics in general.
Performance is not guaranteed on granite and marble. Use with electric screwdriver or drill with 13 mm. Spindle warning for correct dry use: drilling without percussion, optimum number of revs 1500 revs/min. For best results cool during drilling by removing and re inserting the tool repeatedly in the hole. Begin drilling at 45° angle proceed with circular movements. For Grinding Machine.

For porcelain stoneware, ceramics in general and natural stones.
Performance is not guaranteed on granite and marble. Use with grinding machines. Spindle warning for correct dry use: drilling without percussion optimum number of revs 11.000/13.000 revs/min. For best results cool during drilling by removing and re inserting the tool repeatedly in the hole. Begin drilling at 45 ° angle proceed with circular movements. Warning: when the tool is no longer sharp it requires replacing even if it presents the same size and aspect as when new.
Core bit length: 35 mm.