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3/16" X 3/32" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill AmericaCounterboring 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

Enhance your safety and performance with the Drill America - 9/16-1 5 Piece HSS Black & Gold KFD Reduced Shank Drill Bit Set Plastic Case Pouch Killer Force Drill

Cut Style: Shell

Pipe Sizes: 3/4″ – 6″ diameter

Enhance your safety and performance with the Drill America - 1-5/16-20 UNS HSS Bottoming Tap

Size: 7/16"-40

Engineered for quality and consistency

Screw machine drills (also know as stub or stubby drills) are manufactured to National Aerospace Standard 907

Thread Size: m36

Size: m30 x 2

Size: m32 x 1

Choose the Drill America - 3/8-48 UNS HSS Taper Tap for unmatched reliability and performance

Oxy-Fuel Compatible – Works with oxygen and acetylene or propane fuel setups

Exchange/Return Notes