Artu Usa 01160 Multi-Purpose Bit 3/8X16 NonMap 3 parts gravel 2 parts

3 parts gravel 2 parts all-purpose sand 1 part Portland cement (by volume)

Iron goes out as the oxide form which does not stain

Constructed from poly rope with a soft

2" depth allows good 20-gallon capacity

2 Settings: Inflate or Deflate

Artu Usa 01160 Multi-Purpose Bit 3/8X16 NonMap 3 parts gravel 2 parts"ARTU USA" MULTI PURPOSE BIT 3 8x16 Cobalt & tungsten. Carbide tip multi purpose. Carded. 3 8 x 16. For rotary and percussion drilling. Chrome vanadium steel shank with cobalt and tungsten carbide tip for increased strength and extra hardness. Special negative back grinding enables tip to bore through steel, wood, tile, marble, porcelain, glass, concrete, plastic and cast iron with a filing action rather than a cutting action. No center punch