HSK DRILL CHUCK (APU)

HSK DRILL CHUCK (APU)

Cargo Carbide HSK Drill Chuck APU is designed for mounting drills and other suitable cylindrical-shank tools on CNC machining centers equipped with a compatible HSK spindle interface. The integrated HSK-to-APU arrangement provides a practical solution for drilling operations where quick tool setup and a dedicated drill-holding system are required.

The APU drill chuck format is particularly useful for holding different drill diameters within the chuck's specified clamping range. Unlike an ER collet chuck, which requires a separate collet for each applicable shank range, an APU drill chuck provides an adjustable chucking mechanism for compatible cylindrical tools.

HSK APU drill chuck holders are commonly available in HSK63A and HSK100A configurations. Industry catalogues show examples such as HSK63A-APU13 and HSK63A-APU16, along with corresponding HSK100A versions, with capacities such as 1–13 mm and 3–16 mm depending on the model.

This type of holder is suitable for CNC drilling, hole-making, spot drilling, countersinking and other operations where the selected drill fits within the chuck's specified capacity. The actual performance depends on the drill, machine, material, cutting parameters and holder configuration.

For a complete HSK tooling setup, the HSK Drill Chuck APU can be used alongside other HSK products such as ER collet chucks, side-lock holders, face mill arbors and CKB holders. These related products are already listed on the Cargo product page.

Product Specifications

SpecificationDetails
BrandCargo Carbide
Product NameHSK Drill Chuck (APU)
Product TypeHSK APU Drill Chuck / Drill Holder
Machine InterfaceHSK
Tool Holding SystemAPU Drill Chuck
Main ApplicationCNC Drilling
Machine CompatibilityCNC Machining Center with matching HSK spindle
HSK OptionsAccording to machine spindle
Common HSK SizesHSK63A, HSK100A
Common APU ConfigurationsAPU13, APU16
Typical Clamping RangeModel dependent
Tool TypeCylindrical-shank drills and compatible tools
ApplicationDrilling, spot drilling, hole making and related operations
Selection FactorsHSK form, HSK size, chuck capacity and gauge length

Reference configurations: Industry HSK-A APU drill chuck catalogues list HSK63A-APU13-130 with 1–13 mm capacity, HSK63A-APU16-140 with 3–16 mm capacity, HSK100A-APU13-140 with 1–13 mm capacity and HSK100A-APU16-150 with 3–16 mm capacity. These are reference industry configurations and should not be treated as Cargo stock specifications unless confirmed.

Applications

  • CNC drilling
  • Precision hole making
  • Spot drilling
  • Pilot drilling
  • Countersinking with suitable tools
  • General machining-center drilling
  • VMC drilling operations
  • Automotive component machining
  • General engineering
  • Die and mould component machining
  • Production hole-making
  • Maintenance and tool-room machining

Key Benefits

1. Dedicated HSK Machine Interface

The holder is designed around the HSK spindle system, allowing it to be selected for compatible CNC machining centers.

2. Adjustable APU Chucking

The APU mechanism allows suitable cylindrical-shank drills to be clamped within the chuck's specified capacity.

3. Convenient Drill Changes

An adjustable drill chuck can simplify changing between different drill diameters within the supported range.

4. Suitable for CNC Drilling

The holder is intended for drilling and related hole-making operations on compatible CNC machines.

5. Multiple Capacity Options

APU drill chuck holders are available in different chuck capacities, with industry examples including 1–13 mm and 3–16 mm configurations.

6. Useful Alternative to Collet-Based Drill Holding

For suitable drilling applications, an APU chuck provides an adjustable chucking mechanism without requiring a separate ER collet for every tool diameter.

7. Fits into a Broader HSK Tooling System

The holder can complement HSK ER collet chucks, side-lock holders, face mill arbors and boring holders in a CNC tool-room setup.

Why Use an HSK Drill Chuck APU?

Drilling operations often require different drill diameters during production. An APU drill chuck provides a practical adjustable clamping system for compatible cylindrical-shank drills.

When the machine uses an HSK spindle, an HSK APU drill chuck combines the machine-side HSK connection with the drill-side chucking mechanism.

This makes it especially useful for machining centers where drilling is a regular part of the production process and the operator needs a flexible drill-holding option.

HSK APU Drill Chuck vs HSK ER Collet Chuck

FeatureHSK APU Drill ChuckHSK ER Collet Chuck
Main applicationDrillingGeneral cylindrical tool holding
Clamping systemAPU drill chuckER collet and nut
Tool diameter adjustmentChuck mechanismRequires suitable ER collet
Typical toolDrillEnd mill, drill, reamer and other cylindrical tools
Tool changesConvenient for varying drill sizesCollet-dependent
Main advantageAdjustable drill chuckingBroad precision tool-holding flexibility

HSK APU Drill Chuck vs HSK Side Lock Holder

FeatureHSK APU Drill ChuckHSK Side Lock Holder
Primary toolDrillWeldon-shank milling tool
Clamping methodAPU chuckSide-lock screw
Tool shankCylindricalWeldon flat
Main operationDrillingMilling
Typical useHole makingSlotting, profiling and rough milling

How to Select the Correct HSK Drill Chuck APU

Before ordering, check these specifications:

1. HSK Form
Confirm the exact HSK form required by the machine. HSK-A, HSK-E and other forms are not automatically interchangeable.

2. HSK Size
Check the machine spindle, such as HSK63A or HSK100A.

3. Chuck Capacity
Select an APU capacity that covers the drill diameters you intend to use.

4. Drill Shank Diameter
Confirm that the drill's cylindrical shank falls within the chuck's supported range.

5. Gauge Length
Choose the holder length according to the machine setup and required tool projection.

6. Coolant Requirement
If through-tool coolant is important for the application, verify the exact holder configuration before ordering.

7. Machining Application
Consider whether the holder will be used for standard drilling, production drilling, hole finishing or another operation.

FAQs

1. What is an HSK Drill Chuck APU?

An HSK Drill Chuck APU is a CNC tool holder that combines an HSK machine interface with an APU drill chuck for gripping suitable cylindrical-shank drills. It is designed primarily for drilling operations on compatible CNC machining centers.

2. What drills can be used with an HSK APU Drill Chuck?

Compatible cylindrical-shank drills that fall within the APU chuck's specified clamping capacity can be used. The exact drill diameter range depends on the APU model.

3. What are HSK63A APU13 and HSK63A APU16?

They are examples of HSK63A APU drill chuck configurations with different chuck capacities. Industry catalogues commonly list APU13 with a 1–13 mm range and APU16 with a 3–16 mm range.

4. Can an HSK APU Drill Chuck be used for CNC drilling?

Yes. It is specifically intended for drilling applications on compatible CNC machining centers. The HSK interface must match the machine spindle, and the drill must be suitable for the chuck's capacity.

5. What is the difference between an HSK APU Drill Chuck and an HSK ER Collet Chuck?

An APU Drill Chuck uses an adjustable drill-chuck mechanism, while an ER Collet Chuck grips tools through interchangeable ER collets. An APU chuck is particularly convenient for compatible drill sizes, whereas an ER system provides a broader cylindrical-tool holding system.

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