Four-blade reamer / Straight flute reamer
The HR510 Series short-edge through-hole reamers are high-efficiency tools developed by JIAYI Tools specifically for high-feed, small-diameter through-hole machining applications. Their innovative "short-edge, high-rigidity + mirror-finish" design, Small holes can be machined at extremely high speeds with a high surface finish in a single pass, completely resolving the industry pain points associated with traditional short-flute reamers—namely, "low efficiency, chipping at the exit, and poor accuracy"— It is particularly well-suited to the stringent requirements for high-volume machining of small holes in industries such as automotive, electronics, and mold manufacturing.
| Part number | HR510 Series |
|---|---|
| Type | Carbide Reamers |
| Product name | Six-Flute Straight-Flute Reamers / Through-Hole Reamers |
| Example size | D11.15 × 22L × D10 × 186L |
| Coating | Nano TiAlN |
| OEM / ODM | Made to your samples or drawings |
| Origin | Shenzhen, China |
Design details that keep reaming stable, accurate and chatter-free.
The front blade strip features a 15° guide angle to reduce entry-side compression deformation; the rear blade strip features a 0.002 mm mirror-finish blade to ensure the exit side is free of chipping and burrs, with a hole wall surface roughness consistently achieving Ra ≤ 0.15 μm.
With a blade length of only 60% that of a traditional reamer, combined with a constant-diameter, thickened shank design, rigidity is increased by 30%, enabling high-feed machining at f=0.2–0.4 mm/r and boosting efficiency by 40%.
The cutter body is integrally machined from ultra-fine-grain carbide (HRC 68) with a weld-free construction, ensuring no loosening or runout during high-speed, high-feed machining, with a repeatability of ≤0.003 mm.
Using PVD nano-coating technology, the coating is only 2 μm thick, with a hardness of up to HV3800 and a coefficient of friction as low as 0.3, resulting in a twofold increase in tool life compared to traditional coatings.
Features three built-in helical internal cooling channels with a cooling pressure of up to 120 bar. Combined with a large-capacity chip-discharge groove design, this system increases chip evacuation speed by 50% and prevents chips from scratching the bore walls.
The front blade strip features a 15° guide angle to reduce entry-side compression deformation; the rear blade strip features a 0.002 mm mirror-finish blade to ensure the exit side is free of chipping and burrs, with a consistent hole wall surface roughness of Ra ≤ 0.15 μm.
The front angle features an adaptive design ranging from 5° to 8°, which automatically optimizes cutting force when machining different materials, reduces tool wear, and improves machining stability.
Each reamer undergoes G2.5-grade dynamic balancing testing and operates vibration-free at high speeds of 20,000 rpm, ensuring machining stability.
Starting values. Our engineers can tune parameters to your machine and workpiece.
| Workpiece material | Cutting speed vc (m/min) | Feed f (mm/rev) | Coolant |
|---|---|---|---|
| 316L Stainless Steel | 60–90 | 0.05–0.12 | Internal + MQL |
| High-temperature alloy Inconel 718 | 30–50 | 0.03–0.08 | High-pressure internal |
| Ti6Al4V titanium alloy | 50–80 | 0.04–0.1 | MQL |
Typical bores and industries for this reamer.
Machining φ2–φ8 mm locating holes in aluminum alloy and steel workpieces such as transmission housings and engine blocks, with high feed rates and burr-free results, to meet mass production requirements.
Machining through-holes with diameters ranging from φ1 to φ6 mm in stainless steel substrates for orthopedic implants and surgical instruments to ensure the precision and biocompatibility of medical devices.
Machining mounting holes with diameters ranging from φ0.5 to φ3 mm in aluminum alloy substrates, such as smartphone midframes and laptop casings, to meet the assembly requirements for precision electronic components.
Machining φ4–φ16 mm fluid passages in stainless steel and high-temperature alloy substrates for gas turbines and hydraulic valve blocks to meet the sealing requirements of high-pressure fluid systems.
Send your bore size, tolerance and drawing. We manufacture standard sizes and custom reamers made to your samples or drawings.