The Dormer Drill Bit is a double ended stub drill bit. A short double ended drill designed for drilling holes through sheet metal. Possible to use both ends and giving twice the tool life. A 120 degree conventional point to aid self centring. Suitable for drilling in many materials. Steam tempered finish retains cutting fluid and prevents chip to tool welding.
Standard spiral flute design DIN 1897 Stub drill standards High speed steel tool material Right hand rotation and cutting h8 Industry standard tool tolerance zone
