15/32x1/8 Pilots For Counterbore

Screw machine drills are popular in the automotive and construction industries.

INS37167 Torx Insert Bit with 1/4" hex shank.

The right-hand spiral-flute reamer has the smooth, chatter-free action necessary for fine finishes. 5/32" Cobalt Chucking Reamer Chucking Reamers are designed for accurate reaming in most materials using all types of equipment including screw machines, turret lathes, drill presses, and machining centers..It is recommended over the straight-flute for more difficult materials, better surface requirements, and applications with an interruption such as a keyway or cross hole.

7/8"x3/16" HSS Shank Type Keyeat Woodruff Cutter.

Sizes smaller than 1/16 and #52 have the 118 degree standard point.Screw machine drills (also know as stub or stubby drills) are manufactured to National Aerospace Standard 907. Ideal for portable or machine drilling. Screw machine drills are popular in the automotive and construction industries.

Counterboring is the enlargement of a portion of a hole that has previously been formed.. 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 pilot that is interchangable, which provides flexibility in the use of the tool.

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. Counterboring is the enlargement of a portion of a hole that has previously been formed.

Ideal for production, maintenance or portable drilling jobs. Bright finish, which provides superior chip evacuation. #76 HSS Polished Jobber Length Drill Bit.

These counterbores are made of two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangable, which provides flexibility in the use of the tool.

Ideal for production, maintenance or portable drilling jobs.