Description
This 25-piece Castle Brooke Cobalt 1.0-13mm precision drill set is a great choice for drilling stainless steel, alloyed and non-alloyed steel, cast steel, cast-iron, non-ferrous metals as well as plastics. Resistant to wear-and-tear, they are made from M35 steel 5% cobalt with ground flutes and with a straw-coloured finish, manufactured to the DIN 338 standard.
There is no need to pre-punch of pilot drill with this drill set through its self-centring split-point drill tips, giving faster penetration on bits sized 3mm and above.
The set includes: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5 and 13.0mm drill bits.
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