Product Description
The CMT HSK Chuck for Grooving Blade - HSK-63F 59x30x78mm is a precision arbor designed to mount grooving saw blades on CNC machining centers and CNC routers. Engineered with an HSK-F63 shank, this chuck delivers the rigid, high-speed spindle connection that CNC grooving and slotting operations demand. With a 30mm bore and a flange diameter of 59mm, it accepts saw blades up to 250mm (approximately 10 in.) in diameter, making it a reliable solution for grooving hardwood, softwood, plywood, and MDF on point-to-point and CNC machining platforms. The bidirectional RH-LH rotation compatibility adds flexibility across varied CNC spindle configurations.
Key Features
- HSK-F63 Shank - provides a fast, taper-lock spindle interface that eliminates play and vibration, delivering consistent groove depth and cut quality in high-cycle CNC operations.
- 30mm Bore (F = 30 x 2.2mm) - matches the industry-standard bore size used on grooving saw blades, allowing straightforward blade changes without adapter rings or spacers.
- 59mm Flange Diameter (D2) - a compact flange profile that clears workpiece surfaces and fixtures while still providing solid lateral blade support during slotting passes.
- 78mm Total Length - a purpose-matched overall length that positions the blade at the correct working depth relative to the HSK-F63 spindle face, reducing setup time on the machine.
- RH-LH Bidirectional Rotation - compatible with both right-hand and left-hand CNC spindles, broadening the range of machining centers and CNC routers this chuck can serve.
- Pin Hole Configuration (4/M6/48) - a four-pin, M6-thread, 48mm pitch circle design that locks the saw blade securely against the flange face, preventing blade creep during lateral grooving cuts.
- Maximum Saw Blade Capacity of 250mm - supports groove-cutting blades through the full practical range for CNC grooving, from narrow slotting blades up to 250mm diameter, without requiring a different chuck.
Why This Product
- The HSK-F63 interface is the preferred spindle connection for high-precision CNC grooving because its simultaneous taper and face contact eliminates the axial drift that straight-shank arbors can introduce - resulting in repeatable groove widths and depths across large production runs.
- The 30mm bore combined with a four-pin M6 locking pattern means saw blades seat positively against the flange, reducing the risk of blade micro-movement that causes oversized or off-center slots in engineered wood panels.
- RH-LH bidirectional rotation support means this single chuck fits both orientations of CNC spindle, reducing the number of tooling SKUs a shop needs to stock for grooving operations.
- A maximum blade capacity of 250mm covers the practical diameter range for CNC dadoing, slotting, and hinge-line grooving in hardwood, softwood, plywood, and MDF - one chuck handles the full scope of common panel-processing groove depths.
Specifications
- Manufacturer Part Number: 183.420.30
- Brand: CMT Orange Tools
- Shank: HSK-F63
- Diameter: 59mm
- Bore Diameter: 30mm
- Total Length: 78mm
- Pin Hole: 4/M6/48
- Rotation: RH-LH
- Maximum Saw Blade Diameter: 250mm
- Product Class: Router Cutter
Approved Applications
- Grooving
- Slotting
- CNC Router Operations
- CNC Machining Center Operations
- Point-to-Point Machine Operations
Frequently Asked Questions
What is the maximum saw blade diameter this chuck can accept?
The CMT 183.420.30 supports grooving saw blades up to 250mm (approximately 10 in.) in diameter. Always observe the maximum RPM rating indicated for any blade mounted in this chuck.
What spindle interface does this chuck use?
This chuck uses an HSK-F63 shank, which creates simultaneous taper and face contact with the CNC spindle for a rigid, high-repeatability connection suited to precision grooving and slotting work.
Is this chuck compatible with both right-hand and left-hand spindles?
Yes. The 183.420.30 is rated for RH-LH rotation, meaning it is compatible with both right-hand and left-hand CNC spindle configurations, providing flexibility across different machining center setups.
What does the pin hole specification 4/M6/48 mean for blade mounting?
The designation 4/M6/48 refers to four pin holes on a 48mm pitch circle diameter using M6 threads. This pattern locks the grooving blade firmly against the flange face, preventing rotational blade movement during lateral slotting passes.
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