What distinguishes a shell reamer from a solid reamer?
Shell reamer lacks an integral shank
To distinguish between a shell reamer and a solid reamer, it is essential to understand the key characteristics and uses of each type.
Shell Reamer:
- A shell reamer is specifically designed to fit over a separate arbor, meaning it does not have its own integral shank.
- This characteristic allows for quick changeovers and adaptability, as the reamer can be swapped out without changing the entire tool holder.
- Shell reamers are generally suitable for reaming operations in production settings and are often used where quick tool changes are needed.
Solid Reamer:
- A solid reamer is constructed in one piece with an integral shank.
- It is typically used for precise hole sizing and smooth finishes in materials, especially when high accuracy is required.
Explanation of the Options:
- Option 1: "Shell reamer is used for soft materials only" is incorrect. Shell reamers can be used for a variety of materials, not exclusively soft ones.
- Option 2: "Shell reamer lacks an integral shank" is correct. This is the defining feature of shell reamers.
- Option 3: "Shell reamer has spiral flutes only" is incorrect. Shell reamers can have both straight and spiral flutes depending on their design and application requirements.
- Option 4: "Shell reamer is always adjustable" is incorrect. Not all shell reamers are designed to be adjustable; their sizes are typically fixed.
In conclusion, the correct answer is that a shell reamer distinguishes itself by lacking an integral shank, allowing for faster tool changeovers by fitting over a separate arbor.
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The angle formed at the web of a twist drill between the chisel edge and the cutting lip is known as the _______.
The point angle of a drill bit is ______.
Which of the following machine is based upon the principle that the rotating edge of the tool exerts a large force on the workpiece and holes are being created in the workpiece? The material is removed from the workpiece by the shearing and extrusion process.
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Which of the following tools is used for making holes in wood, metal and concrete?
