TORRENS high power presents magnetic v block ALL SIDED HARDEND & GROUND V BLOCKS WHICH MADE IN EN31 MATERIAL HARDNESS OF THIS BLOCK IS 55-58 HRC material iron deep gray colour accuracy for squareness .0005 micron specially v block uses for inspection purpose,tool room,standerd room magnetic v block have three sides magnetic surface when turned "ON" all three magnetic surface are active.permanent magnet holds the work in v side .magnetic pulling capicity will not decrease even after long use
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