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Notes on Use
- Appropriately reducing the cutting speed and feed speed can prolong the service life of the reamer;
- When working, it is necessary to add cutting fluid to protect the cutting edge to make the cutting smoother;
- When the oxide film or other hardened layer remains on the surface of the workpiece, it can be removed by reverse milling.
35° helix angle
The smaller the helix angle, the smaller the axial pulling force and resistance. Provide smoother chip removal and easy to process high-quality workpieces.
High speed steel
Made of High-speed steel, HSS has high hardness, high wear resistance and high heat resistance to ensure processing efficiency.
Fully ground knife edge
The cutting edge is fully ground, wear-resistant and durable, and it is not easy to stick chips which make the cutter head sharper and more durable.
Explanation of Reaming Allowance
- In order to improve its dimensional accuracy and hole surface quality, reasonable reaming can effectively improve the hole accuracy and surface quality.
- Generally, the reaming allowance is 0.1-0.25mm (one side). For larger diameter holes, the reaming allowance should be increased appropriately, but the allowance should not be greater than 0.3mm.
- There is an experience that suggests to reserve a thickness of 1-3% of the reamer diameter as the reaming allowance (diameter value). For example, it is more appropriate to add a Φ20 reamer with a hole diameter of about Φ19.6: 20－(20×2/ 100)=19.6
- Reaming allowances are usually made smaller for hard materials and some aerospace materials.
David L. Jones
2025-05-17 10:32:37
Cuts to accurate size
mpl
2025-01-16 16:27:58
I ordered a 5/32" reamer, finally got to the point in y project where I needed it. Took it out of the bag, installed it in my machine and reamed 2 holes. During fit up, the pins fell out. Way oversized holes. Reamer is a 4.5mm reamer. Wrecked my project. Foolish me. 5/32" = 0.15625" 4.5mm = 0.1772"Pay attention to and measure what tools you receive. Make no assumptions.
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