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China Suppliers Factory Accessories for Turning Tool Holders: Shim, Clamp, Screws & C Ring
Shim For Turning Tool Holder
| Specification | Figure | d | h | L |
|---|---|---|---|---|
| MD1103 | A | 6 | 3 | 11 |
| MD1504 | A | 6 | 4 | 15 |
| MD1506 | A | 8 | 6 | 15 |
| MC1203 | A | 8 | 3 | 12 |
| MC1204 | A | 8 | 4 | 12 |
| MC1604 | A | 8 | 4 | 16 |
| MC1904 | A | 8 | 4 | 19 |
| MV1603 | A | 8 | 3 | 16 |
| MC1604-X | A | 11 | 4.65 | 15.13 |
| Specification | Figure | d | h | L |
|---|---|---|---|---|
| MS1204 | B | 6 | 4 | 12 |
| MS1504 | B | 10 | 4 | 15 |
| MS1904 | B | 11 | 4 | 19 |
| Specification | Figure | d | h | L |
|---|---|---|---|---|
| MT1603 | C | 6 | 3 | 16 |
| MT2204 | C | 8 | 4 | 22 |
| MT16-S | C | 5.2 | 3.2 | 13.5 |
| Specification | Figure | d | h | L |
|---|---|---|---|---|
| MW0603 | D | 6 | 3 | 6 |
| MW0804 | D | 6 | 4 | 8 |
| Specification | Figure | d | h | L |
|---|---|---|---|---|
| STM16 | E | 4.05 | 3.18 | 16.45 |
| STM22 | E | 5.2 | 3.97 | 21.65 |
| STM27 | E | 5.7 | 5.5 | 27 |
Clamp For Turning Tool Holder
| Specification | D | d1 | L | H |
|---|---|---|---|---|
| HL1812 | 9.2 | 5.15 | 18.2 | 12.2 |
| HL1814 | 9.3 | 5.05 | 18.1 | 14 |
| HL1917 | 10.55 | 6.75 | 19 | 17.4 |
| HL2114 | 9.3 | 5.05 | 21.5 | 14.2 |
| HL2217 | 11 | 6.8 | 22.5 | 17 |
| HL2414 | 9.3 | 5.05 | 24.7 | 14.1 |
| MY0619 | 8.6 | 6 | 18.15 | 11.4 |
| MY0621 | 9.5 | 6 | 21.5 | 13.2 |
| MY0823 | 11 | 8 | 22.5 | 15.8 |
| Specification | D | d1 | L | H |
|---|---|---|---|---|
| WT16 | 18.4 | 5.5 | 15 | 8.2 |
| YW08 | 18.1 | 5.5 | 16.8 | 8.8 |
Clamping Screw For Turning Tool Holder
| Specification | D | L1 | L2 | L | F |
|---|---|---|---|---|---|
| ML0622 | M6*1.0 | 8.7 | 8.7 | 22 | 3 |
| ML0625 | M6*1.0 | 8.7 | 8.7 | 25 | 3 |
| ML0816 | M8*1.25 | 6.5 | 6.5 | 16 | 4 |
| ML0828 | M8*1.0 | 12 | 10 | 24.7 | 4 |
| ML0830 | M8*1.0 | 11.8 | 11.8 | 30 | 4 |
| ML0830 | M8*1.0 | — | — | — | — |
| WTCW | 9.6 | 15 | M5*0.8 | 26 | 4 |
Center Screw For Turning Tool Holder
| Specification | d3 | d1 | d2 | D | L | F |
|---|---|---|---|---|---|---|
| CTM510 | 4 | 3.65 | M5*0.8 | 5.6 | 10.5 | 2 |
| CTM513 | 6.2 | 3.65 | M5*0.8 | 5.45 | 13.5 | 2 |
| CTM613 | 7.07 | 5 | M6*1.0 | 7.1 | 13 | 2.5 |
| CTM617 | 7.82 | 5 | M6*1.0 | 7.1 | 17.2 | 2.5 |
| CTM619 | 7.78 | 5 | M6*1.0 | 7.1 | 18.1 | 2.5 |
| CTM822 | 10.25 | 6.13 | M8*1.0 | 9.4 | 22.1 | 3 |
| CTM1022 | 11.9 | 7.7 | M10*1.0 | 11 | 22.1 | 4 |
| MX0513 | 5.46 | 3.65 | M5*0.8 | 6.2 | 12.88 | 2 |
| MX0617 | 7.17 | 5 | M6*1.0 | 7.76 | 17.2 | 2.5 |
| MX0619 | 7.1 | 5 | M6*1.0 | 7.8 | 18.4 | 2.5 |
| MX0822 | 9.45 | 6.17 | M8*1.0 | 10.2 | 21.8 | 3 |
| Specification | d3 | d1 | d2 | D | L | F |
|---|---|---|---|---|---|---|
| CTM5-S | 5 | 3.67 | M5*0.8 | 5.95 | 16 | 2.5 |
| CTM6-S | 6 | 5 | M6*1.0 | 7.8 | 17.2 | 3 |
C Ring For W-type Turning Tool Holders
| Specification | D | d1 | L | H |
|---|---|---|---|---|
| KH540 | 8.8 | 6.5 | 8.8 | 0.75 |
Insert Screw
| Specification | D | L | L1 | d1 | a |
|---|---|---|---|---|---|
| M2*4 | 2.7 | 4 | 1.2 | M2*0.4 | 60° |
| M2*5 | 2.7 | 5 | 1.2 | M2*0.4 | 60° |
| M2.2*5 | 3.2 | 5 | 1.7 | M2.2*0.45 | 50° |
| M2.2*6 | 3.4 | 6 | 1.7 | M2.2*0.45 | 60° |
| M2.2*7 | 3.4 | 7 | 1.7 | M2.2*0.45 | 60° |
| M2.5*5 | 3.7 | 5 | 2 | M2.5*0.45 | 55° |
| M2.5*6 | 3.7 | 6 | 2 | M2.5*0.45 | 55° |
| M2.5*7 | 3.7 | 7 | 2 | M2.5*0.45 | 55° |
| M2.5*8 | 3.7 | 8 | 2 | M2.5*0.45 | 55° |
| M2.5*9 | 3.7 | 9 | 2 | M2.5*0.45 | 55° |
| M3*6 | 4 | 6 | 2 | M3*0.5 | 50° |
| M3*7 | 4 | 7 | 2 | M3*0.5 | 50° |
| M3*8 | 4 | 8 | 2 | M3*0.5 | 50° |
| M3.5*7 | 5.5 | 7 | 3 | M3.5*0.6 | 60° |
| M3.5*8 | 5.5 | 8 | 3 | M3.5*0.6 | 60° |
| M3.5*9 | 5.5 | 9 | 3 | M3.5*0.6 | 60° |
| M3.5*12 | 5.5 | 12 | 3 | M3.5*0.6 | 60° |
| M4*9 | 7 | 9 | 2.5 | M4*0.7 | 60° |
| M4*14 | 7 | 14.2 | 3 | M4*0.7 | 60° |
| M4*16 | 7 | 16 | 4.5 | M4*0.7 | 55° |
| M5*10 | 6.3 | 10 | 2.8 | M5*0.8 | 55° |
| M5*12 | 6.3 | 12 | 2.8 | M5*0.8 | 55° |
| M5*16 | 6.3 | 16 | 2.8 | M5*0.8 | 55° |
| M5*20 | 6.3 | 20 | 2.8 | M5*0.8 | 60° |
Side Screw For Threading Holders
| Specification | D | L | T | d1 |
|---|---|---|---|---|
| M3*6N | 5.5 | 6 | 2.6 | M3*0.5 |
Clamping Screw For Grooving Holders
| Specification | D | L | T | d1 |
|---|---|---|---|---|
| M4*6N | 7.1 | 6 | 3 | M4*0.7 |
| M4*10N | 7.1 | 10 | 3 | M4*0.7 |
| M4*12N | 7.1 | 12 | 3 | M4*0.7 |
| M5*12N | 8.6 | 12 | 4 | M5*0.8 |
| M6*20N | 10 | 20 | 5 | M6*1 |
| M4*14Q | 7 | 10 | 3 | M4*0.7 |
| M5*17Q | 8.4 | 12 | 4 | M5*0.8 |
| M6*20Q | 10 | 14 | 5.2 | M6*1 |
| M6*22Q | 10 | 16 | 5.2 | M6*1 |
Frequently Asked Questions
FAQ
Q
What is a shim for a turning tool holder and what does it do?
A shim for a turning tool holder is a precision-machined support plate placed beneath the cutting insert in the tool holder pocket. It provides a stable seating surface for the insert, ensures correct cutting height, and protects the tool holder body from damage caused by cutting forces. Shims are available in multiple figures (A, B, C, D, E) to match different holder geometries and insert sizes.
Q
How do I select the correct clamp for my turning tool holder?
Selecting the correct clamp requires matching the clamp's dimensions (D, d1, L, H) to your specific tool holder model and insert size. Refer to the specification table and compare the clamp outer diameter (D), inner hole diameter (d1), length (L), and height (H) with your holder's requirements. Common models include HL and MY series for standard turning holders, and WT/YW series for specialized applications.
Q
What is the difference between a clamping screw and a center screw for turning tool holders?
A clamping screw (ML/WTCW series) is used to secure the clamp or top clamp that holds the cutting insert in place, applying downward or lateral clamping force. A center screw (CTM/MX series) passes through the center hole of the insert itself, directly fastening the insert into the holder pocket. Center screws are typically used with inserts that have a central mounting hole, while clamping screws are used with top-clamp or lever-lock systems.
Q
What materials are these turning tool holder accessories typically made from?
Shims are generally made from hardened steel or carbide to withstand the high compressive forces from cutting inserts. Clamps are typically made from alloy steel with surface treatments for durability. Screws (insert screws, clamping screws, center screws) are precision-machined from high-strength alloy steel with thread tolerances to ISO standards, ensuring reliable clamping and resistance to loosening under vibration during machining.
Q
What is the purpose of the C ring for W-type turning tool holders?
The C ring (model KH540) is a retaining ring used specifically in W-type (double-clamping) turning tool holders. It helps secure the clamping pin or lever in the holder body, preventing accidental disassembly during insert changes. The C ring is a small but critical component that ensures the clamping mechanism operates reliably and maintains consistent insert positioning during machining operations.
Q
How do I choose between the different insert screw sizes (M2 to M5)?
The insert screw size is determined by the insert size and the tool holder's insert pocket design. Smaller inserts (e.g., CCMT 06, DCMT 07) typically use M2 or M2.5 screws, medium inserts use M3 or M3.5 screws, and larger inserts use M4 or M5 screws. Always refer to the insert manufacturer's specification or the tool holder's technical documentation to confirm the correct thread size (d1), screw length (L), and cone angle (a) required for a secure and properly seated insert.