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1/2 X 3/4″ Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore hole

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SKU: 2007-0109 Category:

1/2 X 3/4″ Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore hole

1/2 X 3/4 SHANK HIGH SPEED STEEL 2 FLUTE SOLID CAP SCREW COUNTERBORE(2007-0109)

1/2 X 3/4″ Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore
For socket head cap screws.
Straight shank.
Pilot size is 1/2″.
Cutting diameter is 25/32″.
Overall length is 5-1/8″.

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

769053007212

MPN

2007-0109

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