What does a countersink gage measure?
The BARCOR COUNTERSINK GAGE is a precision instrument designed specifically to measure the top (major) countersink diameter. Simply press the spring loaded, exact angle Gaging Plunger into the countersink and read the dial directly in .
How are countersink holes measured?
Since the countersink has a 90° included angle, bisect that angle with the centerline of the hole to create two equal 45° angles. Subtract the existing hole diameter from the countersink diameter. Then divide the answer by two because ½ the difference is on each side of the hole.
How do you read a chamfer gauge?
These gages directly measure the diameter of chamfered holes. No setting master is necessary. When the three-blade plunger is pressed against a flat surface, the gage should read the set number stamped on the back of the indicator. In case of wear, the gage may be adjusted to read the proper number.
How do you use a Starrett countersink gauge?
Press the button on top of the indicator to firmly depress the gage head into the countersink . When the gage is removed, the indicator reading is held in place until the reset button is activated . All ground surfaces are of hardened tool steel .
What is the difference between a chamfer and a countersink?
Countersink vs chamfer The main difference is that a chamfer is normally thought of as being at 45 degrees (though the angle can vary). A countersink is usually one of many different standard angle sizes. The most common countersink angles are 82°, 90° or 100°.
How do I know my chamfer size?
If a chamfer is called out as a face width, then it is to be measured along the hypotenuse of the chamfer. To convert a leg length dimension to face width simply multiply the leg length value by 1.414. To convert from a face width dimension to a leg length dimension, reverse the process and divide by 1.414.
How do you read a Starrett chamfer gage?
These gages directly measure the diameter of chamfered holes. No setting master is necessary. When the three-blade plunger is pressed against a fl at surface, the gage should read the set number stamped on the back of the indicator. In case of wear, the gage may be adjusted to read the proper number.
What is chamfer gauge?
Measure the size of a chamfer on a workpiece. It has a compact design to be easily portable for on-site jobs.
Is a chamfer always 45 degrees?
A fillet is a rounded or radiused corner and a chamfer is a straight cut. Notice the difference in the picture above. Chamfers do not have to be a 45 degree angle as shown in the picture above, but this is certainly the most common configuration.
What is C1 chamfer?
X display is the size of the X in a chamfer dimension with two numbers, such as 1 X 45° (Length X Angle), 45° X 1 (Angle X Length), 1 X 1 (Length X Length) or C1 (chamfers of 45°). Chamfer dimensions can be displayed with various types of text and leaders and sizes of X.