Reamer geometry design ▼

Release time:

2025/09/05

Reamer geometry design ▼

The geometry of the reamer depends on the specific application.

Left-Hand Reamer:

Left-hand reamers are designed for through-hole machining. The spiral helps push chips out of the hole, preventing interference between the flutes and the material. Left-hand reamers are well suited for interrupted cuts such as cross holes or keyways.

Right-hand Reamer:

Right-hand reamers are used for blind holes because the flutes pull chips out of the pre-drilled hole, preventing them from becoming clogged at the bottom of the hole and damaging the reamer. A right-hand spiral is also effective for cross holes or keyways.

Straight-Flute Reamer:

Straight-flute reamers are the most common type of reamer. They are a good choice for general-purpose hole enlargement and perform well in both blind and through holes.

Spiral Fluted Reamers vs. Straight Fluted Reamers:

The straight flute design effectively pushes chips upward, preventing them from accumulating at the bottom of the hole. This makes it ideal for through-hole machining or blind holes with a small hole depth to reamer diameter ratio. Key technical parameters for blind hole straight fluted reamers include cutting diameter, reamer length, number of flutes, and material type. This type of reamer is suitable for machining most metals and alloys, and is particularly effective in machining aluminum alloys and other non-ferrous metals.

Features and Applications of Spiral Reamers: Spiral reamers, with their helical blade design, are suitable for machining deep blind holes. The helical blade shape allows chips to evacuate smoothly along the spiral grooves. Compared to straight-fluted reamers, spiral reamers effectively prevent chip accumulation and evacuation difficulties when machining deep holes. Spiral reamers are commonly used for machining softer materials such as non-ferrous metals, stainless steel, and cast iron.

The most suitable reamer geometry will depend on your specific needs and requirements.

If you're machining a blind hole, a right-hand spiral reamer is a good choice.

If you're machining a through hole, a left-hand spiral angle cutter is a good choice. If you're machining softer materials, a straight-flute angle cutter is a good option.

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Reamer geometry design ▼

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