Easy-spin adjusting nut is heat-treated for durability
and soft carbon steels
The kit can braze up to 6 in
reusable EcoCase for easy storage
Variable 9-13 Shade Adjustment
7/16 x 6-1/8-In. Multi-Purpose Drill Bit Toys Easy-spin adjusting nut is heat-treated7 16" x 6 1 8" multi purpose drill bit, cobalt and tungsten carbide tip for maximum hardness and resistance to heat and wear, for rotary or percussion drilling, for use with, masonry, concrete, brick, marble, granite, hardened steel, cast metal, fiberglass, plexiglass, ceramic tile, hard wood, soft wood and glass.