Busch Fig 4203S 2 Groove Carbide Twist Drills on 3/32" Shanks .70mm-1.60mm - Kit of 10 Silver Metals 229 SH-1 Jeweler's Sledge Heavy

229 SH-1 Jeweler's Sledge Heavy forging & forming 137

5 in (800 mm) long 134

5mm center stone flanked by 3

Round carbide ball burs (Fig 1AU) for opening and shaping stone seats

890 Jaw Length 32mm Total Length 132mm Handle Type Impact-resistant plastic-coated Spring Type Double leaf spring Product Line Supreme Line Variants Single variant

Busch Fig 4203S 2 Groove Carbide Twist Drills on 3/32" Shanks .70mm-1.60mm - Kit of 10 Silver Metals 229 SH-1 Jeweler's Sledge Heavy2 Groove design recommended for hard materials like steel, platinum, titanium, and hard metal alloys of gold and silver outstanding service life. Busch Fig 4203S carbide twist drills are engineered to expel more material from the hole, allowing them to perform better and last longer when cutting hard metals. These drills outperform high speed steel and standard tungsten carbide when drilling jewelry metals and can also be used on mild steel. The