Drilling heads
QD, FD, CD, GD and LD family identifiers. Head-type designations include S1, S2, RA, RB, RD, F, C and ST, with availability varying by family and catalog entry.
Explore MSU replaceable head drills through the current Mono Tip and Multi Tip catalog routes. The range includes drilling heads, toolholders and related components documented within the current modular-drill catalog.
For a modular or replaceable-tip drill, selection begins with the full assembly: head type, cutting diameter, holder reference, holder interface, L/D requirement, coolant conditions and confirmed compatibility.
Send the complete head, holder, interface, application, quantity and delivery requirements for review.
Request a Modular Drill ReviewThe current modular-drill range follows two connected catalog routes. Review the complete head, holder and related-component references before selecting an assembly.
Head and holder routes
QD, FD, CD, GD and LD family identifiers. Head-type designations include S1, S2, RA, RB, RD, F, C and ST, with availability varying by family and catalog entry.
Confirm the complete holder reference, applicable cutting-head range, holder interface, dimensions, L/D and coolant details.
Assembly component routes
Confirm the complete holder, center drilling head, side insert, diameter, dimensions, spare parts and interface.
Confirm the cutting unit, center drilling head, side insert, holder unit, interface code, dimensions and coolant conditions as one assembly.
Confirm the insert reference against the exact compatible assembly. A catalog listing does not establish universal fit.
Submit the customer drawing, step diameters and lengths, interface, component requirements and coolant conditions for feasibility review.
Use Solid Carbide Drills for one-piece 3D, 5D and 8D tools, Solid Carbide Deep Hole Drills for the separate 10D–30D range, Micro Drills for the current micro-drill series, and Solid Carbide Reamers for reaming requirements. Indexable U drills and boring systems are separate product types.
Continue from the six catalog routes to compare the references and assembly fields that must be checked together.
Compare Modular Drill RoutesCompare the complete drilling assembly rather than selecting an isolated head, holder or insert from its appearance or nominal diameter.
| Catalog route | Product range | Fields to confirm together | Selection boundary |
|---|---|---|---|
| Mono Tip drilling heads | QD, FD, CD, GD and LD family structure; head-type designations vary by family | Complete head reference, head type, diameter and intended holder reference | No universal head-to-holder fit is stated |
| Mono Tip toolholders | Dedicated toolholder sections with dimensions and applicable cutting-head fields | Complete holder reference, applicable head range, holder interface, dimensions, L/D and coolant details | Confirm the exact head and holder references together |
| Multi Tip solid drill toolholders | Solid toolholders with center-head and side-insert references | Complete holder, center head, side insert, diameter, dimensions, spare parts and interface | Do not infer a component set from the family name alone |
| Multi Tip modular drill toolholders | Modular toolholders with cutting unit, center head, side insert and interface fields | Complete assembly references, diameter, L/D, dimensions, interface and coolant conditions | Confirm the joint and every component together |
| Multi Tip side inserts | Separate side-insert entries | Insert reference and exact compatible assembly | Listing does not confirm standalone sale or universal fit |
| Special step-drill holders | Separate special multi-insert step-drill holder section | Customer drawing, step dimensions, interface, components and coolant | Custom geometry requires feasibility review |
Compatibility means an exact relationship between the selected head, holder, interface and every related component. Matching only a nominal diameter, family prefix or appearance is not enough.
Installation, locking and torque requirements depend on the exact assembly and applicable technical instructions. Submit the complete references before requesting setup guidance.
Use the comparison to collect the complete assembly references and operating conditions.
Review Modular Drill InputsProvide one complete assembly and application requirement so MSU can review the applicable route and component relationship.
When replacing an existing system, provide clear photographs of every marking and the complete assembled tool. A partial reference is not enough to establish compatibility.
For a special step drill or geometry outside a standard catalog entry, submit the part and tool drawings through Custom Cutting Tools for feasibility review.
Send the complete assembly references and application conditions for compatibility and quotation review.
Send Modular Drill RequirementsUse the catalog to identify every reference required for one assembly, then submit the complete component set for confirmation.
Record the QD, FD, CD, GD or LD family, complete head reference, drilling diameter and applicable head-type designation.
Record the complete holder reference, applicable cutting-head range, holder interface, dimensions, L/D and coolant details.
Record the holder, center drilling head, side insert, diameter, dimensions, spare parts and interface.
Record the cutting unit, drill diameter, center drilling head, side insert, holder unit, dimensions, interface code and spare parts.
Record the complete insert reference and the exact assembly in which it will be used.
Provide the customer drawing, step diameters and lengths, interface, component requirements and coolant conditions.
The catalog supports component identification but is not a universal compatibility chart. A listed component is not automatically available for standalone sale or interchangeable with another assembly.
The Downloads page provides the current Replaceable Head Drills catalog.
Open the current catalog to collect the complete head, holder, interface and related-component references.
View the Replaceable Head Drills CatalogReplaceable Head Drills are within the MSU-manufactured Holemaking Tools range. The current catalog supports the Mono Tip and Multi Tip structure and component categories in this range.
See MSU Factory for manufacturing facilities and Quality Control for inspection and measurement processes.
For an order, the approved assembly references or drawing, critical dimensions, component list, inspection requirements and acceptance basis are confirmed through the quotation and order records. Product images and catalog entries do not establish universal interchangeability, holder fit, locking performance, hole accuracy, finish, tool life or productivity.
Review the inspection environment and how component dimensions and acceptance requirements are confirmed for an order.
Review Quality ControlSend every known head, holder, interface and related-component reference, plus the hole drawing, diameter, depth, workpiece, machine, coolant conditions, quantity, destination and target date.
Include every known head, holder, interface and related-component reference, plus the hole drawing, diameter, depth, workpiece, machine, coolant conditions, quantity, destination and target date.
For an existing assembly, include clear photographs of all markings, the assembled relationship and the observed result or issue.
MOQ is normally 5–10 pieces, with the final quantity confirmed by product and quotation.
Samples are charged according to the product, and sample freight is paid by the customer.
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.
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.
Report a concern within 30 days after receipt and include applicable photos, batch details, measurement report or video. Each case is reviewed individually.
Inquiries are received by Maria at maria@msutools.com or +86 13973369578 by phone or WhatsApp.
Review the shared ordering terms before submitting the complete modular-drill assembly requirement.
Review Ordering and DeliveryThe current catalog includes Mono Tip drilling heads and toolholders, Multi Tip solid and modular toolholders, Multi Tip side inserts, and a separate special step-drill holder section.
No universal fit is stated. Submit the complete head and holder references so the exact relationship can be checked.
They are family identifiers used in the current Mono Tip catalog structure. They do not, by themselves, confirm compatibility.
The ordering structure uses S1, S2, RA, RB, RD, F, C and ST designations. Availability varies by family and catalog entry, so the complete reference must be confirmed.
The catalog lists components, but standalone sale and current availability are confirmed for the exact reference in the quotation.
Submit the complete assembly references to request the applicable installation, locking and torque instructions.
Completion of the whole order is guaranteed within 25–30 days from order placement.