Dormer Drill Bit Long Series 3/16″

Extended Reach With a total length approximately 50% greater than a standard bit, the A110 allows you to drill through thick sections or reach past obstructions that would block a standard drill chuck.

Steam Tempered Finish The bit features a specialized steam-tempered (blue/black) finish. This porous surface helps “lock in” cutting oil and reduces friction, which is vital for dissipating heat in deep-bore applications.

High-Speed Steel (HSS) Durability Made from premium HSS, it balances the hardness required to maintain a sharp edge with the toughness needed to handle the higher torsional (twisting) forces inherent in longer bits.

118° Point Geometry The standard 118° point is robust and easy to resharpen. It is designed for general-purpose drilling across a wide range of materials, including carbon steel, grey cast iron, and non-ferrous metals.

Superior Chip Evacuation The flutes are ground to a precise geometry to ensure that swarf is lifted efficiently out of the hole, even when the bit is buried deep into the workpiece.