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HSK Shrink Fit Tool Holder
HSK TAPER + THERMAL SHRINK CLAMPING
Ultimate Precision for High-Speed Machining
High-precision HSK shrink fit tool holder with 360° thermal clamping for high-speed machining. The combination of HSK taper (hollow shank) and shrink fit technology provides the ultimate in rigidity, balance, and precision. Requires a shrink fit heating unit for tool changes.
HOW SHRINK FIT WORKS
Heat holder bore with shrink unit
Bore expands from heat
Insert tool shank
Cool = 360° grip
AVAILABLE CONFIGURATIONS
HSK Sizes
- HSK-A40
- HSK-A50
- HSK-A63 - Most common
- HSK-A100
Bore Diameters
Gauge Lengths
Multiple L1 lengths available
From short to extended reach
KEY BENEFITS
Product Information
What is an HSK Shrink Fit Tool Holder?
An HSK shrink fit tool holder combines the HSK (Hollow Shank Taper) interface with thermal shrink clamping technology. The HSK interface provides superior rigidity and repeatability compared to traditional BT tapers, making it ideal for high-speed machining centers.
How Shrink Fit Clamping Works
- Heat the holder - Use an induction heating unit to heat the holder bore
- Bore expands - The heated metal expands, enlarging the bore diameter
- Insert the tool - Slide the cutting tool into the expanded bore
- Cool and contract - As the holder cools, it shrinks around the tool with extreme force
HSK Interface Advantages
- • Dual contact - Simultaneous taper and face contact
- • Higher rigidity - Shorter, stiffer connection than BT
- • Better repeatability - Consistent positioning every tool change
- • Higher speeds - Designed for high-speed machining
- • Automatic tool change - Compatible with ATC systems
Specifications
- • Material: 20CrMnTi Steel
- • Hardness: HRC55-58
- • Runout Accuracy: ≤0.002mm
- • Dynamic Balance: G2.5 at 25000RPM
Available Sizes
- • HSK63A: Ø4-32mm tool diameters
- • HSK100A: Ø6-32mm tool diameters
Specifications
Material & Construction
Material: 20CrMnTi, Hardness: HRC55-58, Accuracy: ≤0.002mm, Dynamic Balance: G2.5 25000RPM
HSK Shrink Fit Tool Holder
Select Specifications
φ(d)=Cutting Diameter | R=Radius | D=Shank Diameter | I=Cutting Length | L=Overall Length | All in mm
D=Diameter | L1, L2, L3=Length Dimensions | L=Overall Length | D1=Shank Diameter | All in mm
Select blade width, groove depth (T), and working radius range to find the right Face Groove tool
Select boring diameter range, shank diameter (D), and insert type (C=diamond/T=triangular) to find the right boring head
Select CBA model (complete boring range) and internal boring range to find the right micro finish boring head
Select LBK model (matches your CBA boring head) and extension length to find the right extension rod
Select BT type (spindle taper), LBK number (locking block socket), CBA head model, and projection length (L1) to find the right boring head shank
How to Choose the Right Holder
- Shank Height (H): Choose based on your machine's tool holder/turret slot size
- Tool Height (H3): Must match the H dimension of your SPB Tool (26mm or 32mm)
Example: If you have SPB26-3 tool (H=26mm), select H3=26mm
Must match your SPB Tool's H dimension
HRC≤56 is recommended for best price/performance ratio with newest nano-black coating technology.
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SKU / Article Number
Price per piece
€
€
30% Discounted price
D (Diameter)
L1
L2
L3
L (Overall)
D1
Insert Code
Insert Count
BT Model
D (Inner Ø)
L (Total)
A (Overall)
B
Blade Width
Blade Height
Groove Depth
Orientation
Working Radius Range
Compatible Inserts
φ(d)
R
D
I
L
Morse #
H7 Tolerance
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