Dormer Drill Bit Long Series 3/8″

Superior Reach & Depth With a flute length significantly longer than a standard Jobber bit, the A110 3/8″ is ideal for drilling through deep structural beams, stacked plates, or reaching into recessed engine blocks.

Steam Tempered Finish The bit features a specialized steam-tempered (blue/black oxide) finish. This treatment increases the surface’s ability to retain cutting lubricants and reduces friction, which is critical for preventing heat buildup in deep holes.

Industrial HSS Construction Forged from premium High-Speed Steel, providing the necessary toughness to handle the increased torsional stress of a longer tool without sacrificing the hardness of the cutting edge.

118° Conventional Point The point geometry is engineered for durability and versatility. It is easily reground and provides consistent performance across alloyed and non-alloyed steels.

Efficient Chip Removal The flute design is optimized to lift and transport large 3/8″ chips effectively over the extended length of the bit, preventing “clogging” which can lead to bit failure.