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China HSK Angle Head Series - High Precision Tool Holder from Reliable Suppliers & Factory
HSK Angle Head DG90 Series



| Specification | Fix distance | Drive ratio | ∅d Clamping diameter | ∅D | G | K | L | L1 | M | P | Q | ∅F | Collet | Weight(kg) Standard | Weight(kg) Powerful |
| HSK63A-DG90/ER11-185 | 65 | 1:1 | 0.5-7 | 19 | 21 | 17 | 185 | 55 | 77 | 39 | 29 | 71 | ER11 | 5 | 5.9 |
| HSK63A-DG90/ER11-215 | 65 | 1:1 | 0.5-7 | 19 | 21 | 17 | 215 | 85 | 107 | 39 | 29 | 71 | ER11 | 5.2 | 6.1 |
| HSK63A-DG90/ER11-245 | 65 | 1:1 | 0.5-7 | 19 | 21 | 17 | 245 | 115 | 137 | 39 | 29 | 71 | ER11 | 5.4 | 6.3 |
| HSK63A-DG90/ER11-275 | 65 | 1:1 | 0.5-7 | 19 | 21 | 17 | 275 | 145 | 167 | 39 | 29 | 71 | ER11 | 5.6 | 6.5 |
| HSK63A-DG90/ER16-185 | 65 | 1:1 | 0.5-10 | 28 | 30 | 25 | 185 | 55 | 77 | 51 | 43 | 98 | ER16 | 5.4 | 6.3 |
| HSK63A-DG90/ER16-215 | 65 | 1:1 | 0.5-10 | 28 | 30 | 25 | 215 | 85 | 107 | 51 | 43 | 98 | ER16 | 5.8 | 6.7 |
| HSK63A-DG90/ER16-245 | 65 | 1:1 | 0.5-10 | 28 | 30 | 25 | 245 | 115 | 137 | 51 | 43 | 98 | ER16 | 6.1 | 7 |
| HSK63A-DG90/ER20-185 | 65 | 1:1 | 1.0-13 | 34 | 31 | 28 | 185 | 55 | 77 | 58 | 45 | 108 | ER16 | 5.5 | 6.4 |
| HSK63A-DG90/ER20-215 | 65 | 1:1 | 1.0-13 | 34 | 31 | 28 | 215 | 85 | 107 | 58 | 45 | 108 | ER20 | 5.9 | 6.8 |
| HSK63A-DG90/ER20-245 | 65 | 1:1 | 1.0-13 | 34 | 31 | 28 | 245 | 115 | 137 | 58 | 45 | 108 | ER20 | 6.2 | 7.1 |
| HSK63A-DG90/ER32-200 | 65 | 1:1 | 1.0-20 | 50 | 35 | 35 | 200 | 70 | 92 | 71 | 62 | 138 | ER32 | 6.6 | 7.5 |
| HSK63A-DG90/ER32S-180S | 65 | 1:1 | 1.0-20 | 50 | 35 | 33 | 180 | 53 | 72 | 71 | 62 | 138 | ER32 | - | 7.9 |
HSK Angle Head DG90 Series

| Specification | Fix distance | Drive ratio | ∅d Clamping diameter | ∅D | G | K | L | L1 | M | P | Q | ∅F | Collet | Standard (Distance 110) | Powerful (Distance 110) | Powerful (Distance 80) |
| HSK100A-DG90/ER11-225 | 80/110 | 1:1 | 0.5-7 | 19 | 21 | 17 | 225 | 55 | 82 | 39 | 29 | 71 | ER11 | 11.8 | 13.1 | 12.4 |
| HSK100A-DG90/ER11-255 | 80/110 | 1:1 | 0.5-7 | 19 | 21 | 17 | 255 | 85 | 112 | 39 | 29 | 71 | ER11 | 12 | 13.3 | 12.6 |
| HSK100A-DG90/ER11-285 | 80/110 | 1:1 | 0.5-7 | 19 | 21 | 17 | 285 | 115 | 142 | 39 | 29 | 71 | ER11 | 12.2 | 13.5 | 12.8 |
| HSK100A-DG90/ER11-315 | 80/110 | 1:1 | 0.5-7 | 19 | 21 | 17 | 315 | 145 | 172 | 39 | 29 | 71 | ER11 | 12.4 | 13.7 | 13 |
| HSK100A-DG90/ER16-225 | 80/110 | 1:1 | 0.5-10 | 28 | 30 | 25 | 225 | 55 | 82 | 51 | 43 | 98 | ER16 | 12.2 | 13.5 | 12.8 |
| HSK100A-DG90/ER16-255 | 80/110 | 1:1 | 0.5-10 | 28 | 30 | 25 | 255 | 85 | 112 | 51 | 43 | 98 | ER16 | 12.6 | 13.9 | 13.2 |
| HSK100A-DG90/ER16-285 | 80/110 | 1:1 | 0.5-10 | 28 | 30 | 25 | 285 | 115 | 142 | 51 | 43 | 98 | ER16 | 12.9 | 14.2 | 13.5 |
| HSK100A-DG90/ER20-225 | 80/110 | 1:1 | 1.0-13 | 34 | 31 | 28 | 225 | 55 | 82 | 58 | 45 | 108 | ER20 | 12.3 | 13.6 | 12.9 |
| HSK100A-DG90/ER20-255 | 80/110 | 1:1 | 1.0-13 | 34 | 31 | 28 | 255 | 85 | 112 | 58 | 45 | 108 | ER20 | 12.7 | 14 | 13.3 |
| HSK100A-DG90/ER20-285 | 80/110 | 1:1 | 1.0-13 | 34 | 31 | 28 | 285 | 115 | 142 | 58 | 45 | 108 | ER20 | 13 | 14.3 | 13.6 |
| HSK100A-DG90/ER32-240 | 80/110 | 1:1 | 1.0-20 | 50 | 35 | 35 | 240 | 70 | 97 | 71 | 62 | 138 | ER32 | 13.4 | 14.7 | 14 |
| HSK100A-DG90/ER25H-225 | 80/110 | 1:2 | 1.0-16 | 42 | 45 | 35 | 225 | 71 | 82 | 86 | 80 | 138 | ER25 | 13.8 | 15.1 | 14.4 |
Features
■The cutting tool rotates in reverse to the machine spindle.
■Wrench and nut included, collet should order separately
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Cooling liquid can reach cutting edge from tool body if going through Stop Block
■Auto tool change might be unavailable for some machines
■Non central coolant
HSK Angle Head DG90 Series / Double Head (180°)

| Specification | ∅d Clamping diameter | ∅D | G | K | L | L1 | M | P | Q | ∅F | Collet | Standard | Powerful | |
| HSK63A-DG90/ER16W-200 | 0.5-10 | 30 | 31 | 28 | 200 | 70 | 92 | 60 | 60 | 124 | ER16 | 6.3(Distance 65) | 7.1(Distance 65) | |
| HSK100A-DG90/ER16W-240 | 0.5-10 | 30 | 31 | 28 | 240 | 70 | 97 | 60 | 60 | 124 | ER16 | 13 | 14.3(Distance 110) | 13.6(Distance 80) |
Features
■The cutting tool rotates in reverse to the machine spindle.
■Wrench and nut included, collet should order separately
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop block is required when mounting on machines. Please order separately.
■Stock block may be differently for various brands of machines
■If cooling liquid come from stop block, cooling tube should connect at PT1/8 as img.
■Auto tool change might be unavailable for some machines.
■Non central coolant
HSK Angle Head DG90 Series / Lightweight



| Specification | Fig | φd Clamping diameter | L | L1 | M | Collet | Rotation Ratio / Spindle : angle head axis | Weight(kg) |
| HSK63A-DG90-13-135 | A | 1.0-13 | 135 | 34 | 27.85 | ER20 | 1:1 | 4.4 |
| HSK63A-DG90-13-185 | A | 1.0-13 | 185 | 84 | 77.85 | ER20 | 1:1 | 5.4 |
| HSK100A-DG90-13-145 | B | 1.0-13 | 145 | 34 | 27.85 | ER20 | 1:1 | 6.8 |
| HSK100A-DG90-13-195 | B | 1.0-13 | 195 | 84 | 77.85 | ER20 | 1:1 | 7.8 |
Features
■The cutting tool rotates in reverse to the machine spindle.
■For drilling with cooling, forbidden to use without cooling
■Oil sealed clamp nut request, should order separately
■Collet should order separately
■Wrench and adjusting screw included
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Non central coolant
HSK Angle Head ODG90 Series / Out-Internal Cooling


| Specification | Fig | φd Clamping diameter | L | L1 | M | Collet | Rotation Ratio / Spindle : angle head axis | Weight(kg) |
| HSK63A-ODG90-13-185 | A | 1.0-13 | 185 | 84 | 70.5 | ER20 | 1:1 | 5.9 |
| HSK100A-ODG90-13-195 | B | 1.0-13 | 195 | 84 | 70.5 | ER20 | 1:1 | 8.4 |
Features
■The cutting tool rotates in reverse to the machine spindle.
■For drilling with cooling, forbidden to use without cooling
■Oil sealed clamp nut request, should order separately
■Collet should order separately
■Wrench and adjusting screw included
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Non central coolant
HSK Angle Head DG90 Series / Power Collet



| Specification | Type | Weight(kg) | |
| HSK100A-DG90/HPC32-240 | Standard | 16.0(Distance 110) | |
| HSK100A-DG90/HPC32-240S | Powerful S | 17.3(Distance 110) | 16.6(Distance 80) |
Features
■The cutting tool rotates in forward to the machine spindle.
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Cooling liquid can reach cutting edge from tool body if going through Stop Block.
■Non central coolant
■Wrench included
HSK Angle Head DG90 Series



| Specification | Fix distance | Drive ratio | Adapter | Length | Weight(kg) | |
| HSK100A-DG90/DGH35-240 | 110 | 1:1 | DG35 | 240 | 14.2(Distance 110) | |
| HSK100A-DG90/DGH35-240S | 80/110 | 1:1 | DG35 | 240 | 15.5(Distance 110) | 14.8(Distance 80) |
Features
■The cutting tool rotates in forward to the machine spindle.
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Cooling liquid can reach cutting edge from tool body if going through Stop Block.
■Non central coolant
■Wrench included
HSK Angle Head DG90 Series / Face Mill

| Specification | Type |
| HSK100A-DG90/HPC32-240 | Standard |
| HSK100A-DG90/HPC32-240S | Powerful S |
Features
■The cutting tool rotates in reverse to the machine spindle.
■Cooling liquid can't go through postioning bolt
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Non central coolant
HSK Angle Head DG90 Series


| Specification | Fig | ∅d | ∅D | G | K | L | L1 | M | P | Q | ∅F | Collet | Rotation Ratio / Spindle : angle head axis | Standard (Distance) | Powerful (Distance) | Powerful (Distance 80) |
| Weight(kg) | ||||||||||||||||
| HSK63A-DG90/TC12-200 | A | M4~M12 | 22 | 38 | 39 | 200 | 70 | 92 | 80 | 46 | 135 | TC12-d | 2:1(Decelebration) | 6.9(65) | 7.8(65) | - |
| HSK100A-DG90/TC12-240 | B | M3~M12 | 22 | 38 | 39 | 240 | 70 | 97 | 80 | 46 | 135 | TC12-d | 2:1(Decelebration) | 13.7(110) | 15.0(110) | 14.3 |
| HSK100A-DG90/TC20-240 | C | M7~M20 | 22/31 | 49 | 49 | 240 | 86 | 97 | 100 | 66.5 | 178 | TC20-d | 2:1(Decelebration) | 15.5(110) | 16.8(110) | 16.1 |
Features
■The cutting tool rotates in reverse to the machine spindle.
■Collet should order separately.
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■Pay attention to feeding as tapping speed is decreased to be 1/2 of spindle speed
■A Stop Block is required when mounting on machines. Please order separately.
■Cooling liquid can reach cutting edge from tool body if going through Stop Block.
■Auto tool change might be unavailable for some machines.
■Non central coolant
HSK Angle Head DG45 Series / ER Collet


| Specification | Fig | ∅d | ∅D | G | L | L1 | M | P | Q | ∅F | Collet | Rotation Ratio / Spindle : angle head axis | Standard (Distance) | Powerful (Distance) | Powerful (Distance 80) |
| Weight(kg) | |||||||||||||||
| HSK63A-DG45/ER16-230 | A | 0.5-10 | 28 | 30 | 230 | 100 | 122 | 20 | 51.5 | 90 | ER16 | 1:1 | 5.6(65) | 6.5(65) | - |
| HSK63A-DG45/ER20-235 | A | 1.0-13 | 34 | 30 | 235 | 105 | 127 | 25 | 51.5 | 90 | ER20 | 1:1 | 5.7(65) | 6.6(65) | - |
| HSK100A-DG45/ER16-270 | B | 0.5-10 | 28 | 30 | 270 | 100 | 127 | 20 | 51.5 | 90 | ER16 | 1:1 | 12.4(110) | 13.7(110) | 13.0 |
| HSK100A-DG45/ER20-275 | B | 1.0-13 | 34 | 30 | 275 | 105 | 132 | 25 | 51.5 | 90 | ER20 | 1:1 | 12.5(110) | 13.8(110) | 13.1 |
Features
■The cutting tool rotates in reverse to the machine spindle.
■Wrench and nut included, collet should order separately.
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Cooling liquid can reach cutting edge from tool body if going through Stop Block.
■Auto tool change might be unavailable for some machines.
■Non central coolant
HSK Angle Head DGU Series

| Specification | Fix distance | Drive ratio | Clamping diameter | Length |
| HSK63A-DGU/ER20-295 | 65 | 1:1 | 1.0-13 | 295 |
| HSK100A-DGU/ER32-335 | 110 | 1:1 | 1.0-20 | 335 |
Features
■The cutting tool rotates in reverse to the machine spindle.
■Wrench and nut included, collet should order separately.
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Non central coolant
HSK Angle Head DGU30 Series


| Specification | Fig | Collet | Rotation Ratio / Spindle : angle head axis | Weight(kg) |
| HSK63A-DGU30/ER20-255 | A | ER20 | 1:1 | 6.8 |
| HSK100A-DGU30/ER32-305 | B | ER32 | 1:1 | 15.3 |
Features
■The cutting tool rotates in forward to the machine spindle.
■Wrench and nut included, collet should order separately.
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Cooling liquid can reach cutting edge from tool body if going through Stop Block.
■Non central coolant
HSK Angle Head DG90 Series

| Specification | Specification | Specification |
| HSK63A-DG90-CA4SGM-241 | HSK63A-DGB-177 | DG90-CA4SGM-64 |
| HSK63A-DG90-CA4SGM-273 | HSK63A-DGB-177 | DG90-CA4SGM-96 |
| HSK63A-DG90-CA4SGM-305 | HSK63A-DGB-177 | DG90-CA4SGM-128 |
| HSK63A-DG90-CA6SGM-222 | HSK63A-DGB-177 | DG90-CA6SGM-45 |
| HSK63A-DG90-CA6SGM-266 | HSK63A-DGB-177 | DG90-CA6SGM-89 |
| HSK63A-DG90-CA6SGM-310 | HSK63A-DGB-177 | DG90-CA6SGM-133 |
| HSK100A-DG90-CA4SGM-260 | HSK100A-DGB-196 | DG90-CA4SGM-64 |
| HSK100A-DG90-CA4SGM-292 | HSK100A-DGB-196 | DG90-CA4SGM-96 |
| HSK100A-DG90-CA4SGM-324 | HSK100A-DGB-196 | DG90-CA4SGM-128 |
| HSK100A-DG90-CA6SGM-241 | HSK100A-DGB-196 | DG90-CA6SGM-45 |
| HSK100A-DG90-CA6SGM-285 | HSK100A-DGB-196 | DG90-CA6SGM-89 |
| HSK100A-DG90-CA6SGM-329 | HSK100A-DGB-196 | DG90-CA6SGM-133 |
| Specification | Fig | ∅d | G | K | L | L1 | M | P | Q | Rotation Ratio / Spindle : angle head axis | Weight(kg) Distance 65 | Weight(kg) Distance 80 | Weight(kg) Distance 110 |
| HSK63A-DG90-CA4SGM-241 | A | 3-4 | 12.5 | 16.5 | 241 | 56 | 133 | 10.5 | 10.5 | 1:1.06(/Acceleration) | 5.5 | - | - |
| HSK63A-DG90-CA4SGM-273 | A | 3-4 | 12.5 | 16.5 | 273 | 88 | 165 | 10.5 | 10.5 | 1:1.06(/Acceleration) | 5.6 | - | - |
| HSK63A-DG90-CA4SGM-305 | A | 3-4 | 12.5 | 16.5 | 305 | 120 | 197 | 10.5 | 10.5 | 1:1.06(/Acceleration) | 5.7 | - | - |
| HSK63A-DG90-CA6SGM-222 | A | 3-6 | 15 | 20 | 222 | 37 | 114 | 12.5 | 16 | 1:0.77(Deceleration) | 5.6 | - | - |
| HSK63A-DG90-CA6SGM-266 | A | 3-6 | 15 | 20 | 266 | 81 | 158 | 12.5 | 16 | 1:0.77(Deceleration) | 5.8 | - | - |
| HSK63A-DG90-CA6SGM-310 | A | 3-6 | 15 | 20 | 310 | 125 | 202 | 12.5 | 16 | 1:0.77(Deceleration) | 6.0 | - | - |
| HSK100A-DG90-CA4SGM-260 | B | 3-4 | 12.5 | 16.5 | 260 | 56 | 117 | 10.5 | 10.5 | 1:1.06(Acceleration) | - | 11.7 | 11.1 |
| HSK100A-DG90-CA4SGM-292 | B | 3-4 | 12.5 | 16.5 | 292 | 88 | 149 | 10.5 | 10.5 | 1:1.06(Acceleration) | - | 11.8 | 11.2 |
| HSK100A-DG90-CA4SGM-324 | B | 3-4 | 12.5 | 16.5 | 324 | 120 | 181 | 10.5 | 10.5 | 1:1.06(Acceleration) | - | 11.9 | 11.3 |
| HSK100A-DG90-CA6SGM-241 | B | 3-6 | 15 | 20 | 241 | 37 | 98 | 12.5 | 16 | 1:0.77(Deceleration) | - | 11.8 | 11.2 |
| HSK100A-DG90-CA6SGM-285 | B | 3-6 | 15 | 20 | 285 | 81 | 142 | 12.5 | 16 | 1:0.77(Deceleration) | - | 12.0 | 11.4 |
| HSK100A-DG90-CA6SGM-329 | B | 3-6 | 15 | 20 | 329 | 125 | 186 | 12.5 | 16 | 1:0.77(Deceleration) | - | 12.2 | 11.6 |
Features
■The cutting tool rotates in forward to the machine spindle.
■Tool code for distance 80 should add "S"
■The angles of the Locating Pin to the drive key groove and direction of cutting edge are freely adjustable.
■A Stop Block is required when mounting on machines. Please order separately.
■Auto tool change might be unavailable for some machines.
■Wrench included, collet should order separately.
■Non central coolant
Frequently Asked Questions
Q
What is the drive ratio of the HSK Angle Head DG90 Series?
A
The majority of HSK Angle Head DG90 Series models feature a 1:1 drive ratio, meaning the angle head spindle rotates at the same speed as the machine spindle. Some special variants, such as the tapping heads (TC12/TC20), use a 2:1 deceleration ratio, while certain collet adapter models offer 1:1.06 acceleration or 1:0.77 deceleration ratios depending on the application.
Q
Is a Stop Block required for mounting HSK Angle Heads on machines?
A
Yes, a Stop Block is required when mounting any HSK Angle Head on a machine. The Stop Block must be ordered separately. It also serves as the coolant inlet — cooling liquid can reach the cutting edge through the tool body when routed via the Stop Block.
Q
Are collets included with the HSK Angle Head DG90 Series?
A
Collets are not included and must be ordered separately. However, wrench and nut are typically included with standard ER collet models. For lightweight and out-internal cooling series, an oil sealed clamp nut and adjusting screw are included, but the collet itself still needs to be ordered separately.
Q
What is the difference between the Standard and Powerful versions of the HSK Angle Head?
A
The "Powerful" version is designed for higher torque and more demanding cutting applications, and it generally weighs slightly more than the Standard version. Both versions share the same dimensional specifications (length, clamping diameter, etc.), so they are interchangeable in terms of mounting. The Powerful version is recommended for heavy-duty milling and drilling operations.
Q
Can the cutting angle direction be adjusted on these HSK Angle Heads?
A
Yes. The angle of the Locating Pin relative to the drive key groove, as well as the direction of the cutting edge, are freely adjustable on all models in the HSK Angle Head DG90, DG45, and DGU series. This provides flexible setup for various machining orientations without requiring additional tooling.
Q
Is automatic tool change (ATC) supported for HSK Angle Heads?
A
Automatic tool change (ATC) compatibility depends on the specific machine model and configuration. It may be unavailable on some machines. Please verify ATC compatibility with your machine tool supplier or contact us before ordering if ATC functionality is a critical requirement for your application.













