Rotary tool bit block 100 mm - 16 blind round wells 3.6 mm, 12 mm deep, for 3.2 mm shanks

Bench block, 100 x 40 mm and 16 mm tall, hollowed by BLIND cavities over a solid floor. One solid single-piece model. - Eight columns at an 11 mm pitch: 7.4 mm of material between two wells, 9.7 mm of rim at each end; two rows at y = +/-8 mm: 10.2 mm of rim top and bottom - A common rotary tool bit has a 3.2 mm shank: it drops into a 3.6 mm well, shank down, and the bit itself stands 25 to 30 mm proud - MEASURED ON THE MESH: 16 cavities at mid-height, 0 openings below the floor, 1 single connec…

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