The Magafor 135 series high-speed steel combined drill and countersink with uncoated (bright) finish has a bell style to create a center hole with a 60-degree countersink and is suitable for maintaining an accurate center hole in multi-step applications. The bell-style countersink includes a 120-degree chamfered section between the countersink and the material surface, providing clearance and reducing the possibility of damaging the center hole or countersink when exposed to multiple machining operations. The 118-degree point drills a center hole, while the two spiral flutes clear chips away to prevent clogging. High-speed steel (HSS) provides hardness for wear resistance, and the uncoated finish has no additional surface treatment or coating. The tool is double-ended to provide two cutting ends. The round shank accommodates most drill chucks.
Combined drill and countersinks are fluted cutting tools that drill a shallow hole with a conical or gradually widened opening, also known as a countersink, into the surface of a workpiece. These tools, also called combined drill countersinks, drill-point countersinks or center drills, are commonly used to create center holes that act as a bearing surface for a machine center. Some types reduce the two-step process of creating a countersunk pilot hole into one.
Magafor manufactures precision cutting tools, including counterbores, countersinks, deburring tools, and end mills. The company, founded in 1937, is headquartered in Fontenay-sous-Bois, France.