Description
Mill-Thread Toolholder – SR0021H21, Ø21 mm, Single Insert with Internal Coolant
The SR0021H21 Mill-Thread Toolholder is engineered for high-performance thread milling with single insert setups, delivering precision and stability in challenging applications. With a cutting diameter of 21 mm and an internal coolant bore, this toolholder optimizes chip evacuation and thermal control during machining. Its secure screw-clamping mechanism ensures consistent insert retention and smooth operation under high cutting loads.
Designed for 21 mm pocket-size inserts, this toolholder features a 20 mm shank diameter (D1), 16.5 mm neck diameter (D2), a total length of 94 mm, and a 40 mm projection length (L1). It is compatible with S21 insert screws and K21 Torx keys—offering ease of setup and durability for repeated use in demanding environments.
Key Features:
- Ordering Code: SR0021H21
- Toolholder Type: Single Insert Mill-Thread
- Coolant Supply: Internal Coolant Bore
- Clamping Method: Screw
- Insert Pocket Size (A): 21 mm
- Cutting Diameter (D): 21 mm
- D1: 20 mm
- D2: 16.5 mm
- L: 94 mm
- L1: 40 mm
- Insert Screw: S21
- Torx Key: K21
Carmex Precision Tools Ltd. is a global leader in threading and grooving technology. With a wide range of solutions including Thread Turning inserts, Mill-Thread holders, Solid Carbide threadmills, and Spiral Mill-Thread tools, Carmex delivers innovation and reliability to meet the evolving needs of modern CNC machining.
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