3.4mm Drilling Dia HSS Cobalt Metric Spiral Twist Drill Bit Rotary Tool 15pcs 1/8"T X 0.79"W X 236.22"L suitable for most kinds of

suitable for most kinds of home

External Size:(LxWxT): 5

it must be inserted into the end

Reliable Alloy Steel Material for Corrosion Resistance

134) 03/1998 -

3.4mm Drilling Dia HSS Cobalt Metric Spiral Twist Drill Bit Rotary Tool 15pcs 1/8"T X 0.79"W X 236.22"L suitable for most kinds ofThis product is made of high speed steel and cobalt material. After using full grinding process, it has stronger cutting ability and longer service life. Suitable for processing non ferrous metals (such as copper and aluminum), non metallic and ferrous metals (such as iron, steel and stainless steel). Straight shank works in both keyed and key less drill chucks. The advantages of full grinding drill bit: High geometric precision, strong cutting