5/16 X 7/16 High Speed Steel 2 Flute Solid Cap Screw Counterbore hole

$34.99

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Availability: In stock

SKU: 2007-0106 Category:

5/16 X 7/16 High Speed Steel 2 Flute Solid Cap Screw Counterbore hole

5/16 X 7/16 HIGH SPEED STEEL 2 FLUTE SOLID CAP SCREW COUNTERBORE(2007-0106)

5/16 X 7/16″ Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore
For socket head cap screws.
Straight shank.
Pilot size is 5/16″.
Cutting diameter is 15/32″.
Overall length is 4″.

A counterbore is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. A counterbore hole is typically used when a fastener, such as a socket head cap screw or fillister head screw, is required to sit flush with or below the level of a workpiece’s surface. Source Wikipedia

What is the difference between countersink and counterbore?

The difference between them is the angle at which the larger hole is drilled. A countersink’s larger hole is tapered at an angle; whereas a counterbore is drilled straight into the material and leaves a flat bottom between the counterbore and the narrower inner shaft.

A counterbore is used to enlarge the opening of a hole producing a flat bottom so a socket-head screw will fit flush with the surface of the part. Lock washers may be used to ensure a secure assembly. Typically counterbores are used for a single purpose.

 

 

Weight 3 lbs
Brand

Unbranded

UPC

769053007182

MPN

2007-0106

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