HSS twist drill set with centring pin in storage case
6-piece set. Ø 1.5 – 2.0 – 2.5 – 3.0 – 3.5 – 4.0mm. For precision tapping of wood and plastics; also non-ferrous metal, steel and stainless steel sheets. Titanium coating reduces friction and increases service life. Shaft Ø 3mm, 6-piece set. Rotational speed see table.
Note: The term HSS for this tool category comes from the utilised drill material. High speed steel (HSS) is a high alloy tool steel extremely resistant to wear due to its manufacturing process and is dimensionally stable up to approx. 600°C. Cutting oil or coolant emulsion should be used as cooling lubricant, when machining steel. Spirits or petroleum should be used for aluminium. Normally, plastic and wood can be dry-machined.
