#5 .124mm Machine Screw Solid Counterbore - High Performance & Durable Cutting Tool | Drill America Tap & Dies Choose the Drill America -

Choose the Drill America - 3/32-50 UNS HSS Bottoming Tap for unmatched reliability and performance

Get the Drill America - 1-5/16-16 UNS HSS Taper Tap and experience the perfect combination of performance and protection for your professional needs

Choose the Drill America - 5/16-25/32 90 degree Deburring Tool for unmatched reliability and performance

High speed steel spiral flute Chucking Reamers are designed for accurate reaming and are for use in most materials using all types of equipment including screw machines

Choose the Drill America - 1-11/16 Precison Made Lathe Mandrel for unmatched reliability and performance

#5 .124mm Machine Screw Solid Counterbore - High Performance & Durable Cutting Tool | Drill America Tap & Dies Choose the Drill America -Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1 8" or less), the operations is usually known as spot facing; for example, a flat seat for a bolt head or nut. If, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These counterbores are made of two piece construction, having an integral shank and counterbore cutter, and a