#12 .215mm Machine Screw Solid Counterbore - High Performance & Durable Cutting Tool | Drill America Tap & Dies Get the Drill America -

Get the Drill America - 3-1/2 X 1/2 X 1 HSS Arbor Type Keyeat Woodruff Cutter and experience the perfect combination of performance and protection for your professional needs

B (2″-6″)

375 ASME die and plunger set and 1/4-1/2″ pulling jaws

Pulling Jaws: 1/4-1/2″ with options for 3 sizes

With its superior deoxidizers

#12 .215mm Machine Screw Solid Counterbore - High Performance & Durable Cutting Tool | Drill America Tap & Dies Get 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