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Module four: Specialist Electrician's Tools
Power Tool Accessories: Drill Bits

Metal drill Bits - HSS and HSS Cobalt
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A metal drill bit can be easily identified by the sharp tip, and the fact that that metal drill bits have the same diameter along the entire length.
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HSS Metal Drill bits have tips which are ground at an angle of 118°, This angle on the tip aids in drilling into softer metallic materials such as copper or aluminium.
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There are also 135° Metal drill bits available, these 135° have a split point, which makes penetration of metal effortless, as the split point prevents "drill walk".
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Roll forged from High Speed Steel, the C.K range of drill bits for metal conform to the requirements of DIN 338.
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Available in metric sizes 1 to 13mm in 0.5mm steps and Imperial 1/16” to ½”.
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