Explore MSU solid carbide reamers in the current REA-H7 and REAC-H7 catalog configurations. Both routes include 4-flute and 6-flute carbide machine reamer entries covering nominal cutting diameters from 4.0 to 20.0 mm.
Selection begins with the required finished-hole size and tolerance, pre-hole condition, stock allowance, blind or through-hole geometry, flute count, coolant route, workpiece and machine setup. The catalog series name does not by itself guarantee an H7 finished hole.
Send the hole, allowance, process, quantity and delivery requirements for catalog-entry and application review.
The current carbide reamer range follows two configurations. Compare coolant construction, flute count and the complete catalog dimensions before selecting a route.
REA-H7
Standard catalog configuration without the internal-coolant designation. The current nominal cutting-diameter range is 4.0–20.0 mm.
REAC-H7
Internal-coolant reamer configuration. The current nominal cutting-diameter range is 4.0–20.0 mm.
Select a candidate configuration only after the finished-hole requirement and the pre-reaming process are defined.
MSU solid carbide reamer configurations, current identity, diameter and flute structure, and the inputs that still control selection.
Configuration
Current identity
Diameter and flute structure
Inputs that still control selection
REA-H7
Standard configuration without the internal-coolant designation
4.0–10.0 mm in 4-flute entries; 10.5–20.0 mm in 6-flute entries
Finished-hole size and tolerance, pre-hole, allowance, blind or through hole, workpiece, machine, holder and external coolant conditions
REAC-H7
Internal-coolant reamer configuration
4.0–10.0 mm in 4-flute entries; 10.5–20.0 mm in 6-flute entries
Finished-hole size and tolerance, pre-hole, allowance, blind or through hole, workpiece, machine, holder and internal coolant conditions
Tool dimensions
The catalog provides item code, d1 cutting diameter, d2, L1, L2, a Dh6 shank field and total length L. Dh6 describes a tool-shank field; it is not a finished-hole tolerance.
Process conditions
Speed, feed and coolant choices require the selected entry, actual workpiece, pre-hole, stock allowance, holder, machine and acceptance requirement.
Use the comparison to prepare the finished-hole, pre-hole, stock-allowance and coolant inputs.
Provide one complete finished-hole and process requirement so MSU can review the applicable configuration and catalog entry.
Required finished-hole diameter, tolerance, surface requirement and inspection method.
Blind or through-hole geometry, hole depth, entry and exit conditions, interruptions, cross-holes and any step.
Pre-hole diameter, process, condition and intended stock allowance.
REA-H7 or REAC-H7 route when known, plus the selected item code or tool drawing.
Required flute count only when it is already specified; otherwise allow it to follow the selected catalog entry.
Workpiece material, grade, hardness and stock condition when known.
Machine, spindle interface, holder, overhang, runout and rigidity information.
Coolant delivery, pressure, flow and filtration, plus current speed, feed, result or issue.
Quantity, destination country and target date.
Define the hole result
Translate terms such as precision reamer into measurable hole and inspection requirements. The product name alone does not define the resulting diameter, tolerance, roundness, cylindricity or finish.
Custom requirement
For a non-catalog reamer, submit the part and tool drawings through Custom Cutting Tools for feasibility review. Diameter, length, flute, coolant, tolerance, material and coating requirements must be assessed together.
Send the complete finished-hole, pre-hole, allowance and setup requirements for review.
Use the selected catalog entry to confirm the configuration, item code, flute count and every tool dimension.
REA-H7
Item-code pattern
REA-4EH7… / REA-6EH7…
Nominal cutting diameter
4.0–20.0 mm
Flute structure
4 flutes at 4.0–10.0 mm; 6 flutes at 10.5–20.0 mm
Published fields
Item code, d1, d2, L1, L2, Dh6 and L
REAC-H7
Item-code pattern
REAC-4EH7… / REAC-6EH7…
Nominal cutting diameter
4.0–20.0 mm
Flute structure
4 flutes at 4.0–10.0 mm; 6 flutes at 10.5–20.0 mm
Published fields
Item code, d1, d2, L1, L2, Dh6 and L
Confirm from one catalog entry
Configuration and complete item code
d1 cutting diameter and d2 dimension
L1, L2 and total length L
Dh6 shank field
4-flute or 6-flute structure
Coolant configuration
Current availability and order terms
All dimensions must come from the same catalog entry. Product identity and tool dimensions do not establish live stock, a finished-hole tolerance, a workpiece recommendation or a machining result.
The Downloads page provides the current Solid Carbide Reamers catalog.
Open the current catalog to identify the exact configuration, item code and dimensional entry.
Solid Carbide Reamers are within the MSU-manufactured Holemaking Tools range. The current catalog supports the REA-H7 and REAC-H7 identities, flute structure, nominal diameter range and dimensions in this range.
See MSU Factory for manufacturing facilities and Quality Control for inspection and measurement processes.
For an order, the selected item code or approved drawing, critical tool dimensions, inspection requirements and acceptance basis are confirmed through the quotation and order records. Tool dimensions and catalog tolerances do not establish the resulting hole size, H7 tolerance, roundness, cylindricity, runout, finish, tool life or productivity.
Review the inspection environment and how reamer dimensions and acceptance requirements are confirmed for an order.
Send the selected configuration and item code when known, the finished-hole drawing, tolerance and inspection method, pre-hole details, allowance, workpiece, machine and holder, coolant conditions, quantity, destination and target date.
Inquiry details
Include the selected configuration or item code, finished-hole drawing, tolerance and inspection method, pre-hole details, allowance, workpiece, machine and holder, coolant conditions, quantity, destination and target date.
Replacement details
For a replacement request, include clear photographs, every visible marking and the current result or issue.
MOQ
MOQ is normally 5–10 pieces, with the final quantity confirmed by product and quotation.
Samples
Samples are charged according to the product, and sample freight is paid by the customer.
Lead time and payment
Completion of the whole order is guaranteed within 25–30 days from order placement. T/T with deposit and balance is supported; percentages and milestones are stated in the quotation or order.
Trade terms and packaging
EXW, FOB, CIF and DDP can be discussed and are confirmed by order, destination and feasibility. Quotations remain valid for 30 days. Packaging is confirmed in the quotation or order.
After-sales review
Report a concern within 30 days after receipt and include applicable photos, batch details, measurement report or video. Each case is reviewed individually.
The range includes REA-H7 and the REAC-H7 internal-coolant configuration.
Both configurations contain nominal cutting-diameter entries from 4.0 to 20.0 mm.
The catalog uses 4-flute item codes from 4.0 to 10.0 mm and 6-flute item codes from 10.5 to 20.0 mm in both configurations.
No. It is a catalog series identifier. The finished-hole result depends on the selected entry, pre-hole, allowance, workpiece, machine, holder, coolant, cutting process and inspection method.
It is a shank-related dimension field in the catalog drawing and table, not a finished-hole tolerance claim.
No. Specify the exact reamer, workpiece and application conditions so speed, feed and coolant choices can be reviewed for your setup.
Completion of the whole order is guaranteed within 25–30 days from order placement.
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