Busch #4203S Twist Drill Bit - Tungsten Carbide - 2.35mm Shaft Oval Designed for Jewellery Metals: Ideal

Designed for Jewellery Metals: Ideal for silver

The knurled handle provides an excellent grip and control

This foil is manufactured specifically for use in high temperature applications such as enameling

making it convenient for both workshop and on-the-go use

Busch #4203S Twist Drill Bit - Tungsten Carbide - 2.35mm Shaft Oval Designed for Jewellery Metals: Ideal#4203S tungsten drills especially suit steel, platinum, titanium, hard metal alloys, gold, silver. Recommended Speed: 5,000 9,000 r. p. m. (drilling freehand) 8,000 14,000 r. p. m. (via drill press). *Tungsten carbide drills offer superior drilling ability and wear resistance, making this a lasting investment in your harder material drilling applications!