Description
Mill-Thread Toolholder – SR0018H21, Ø18 mm, Single Insert with Internal Coolant
The SR0018H21 Mill-Thread Toolholder is a robust solution for thread milling operations requiring high precision and durability. With an 18 mm cutting diameter and internal coolant bore, it provides excellent chip evacuation and thermal management. This single insert holder uses a screw-clamping method for secure and consistent insert retention, supporting reliable performance in demanding CNC applications.
Designed for use with 21 mm pocket-size inserts, this holder features a 20 mm shank diameter (D1), a 14.4 mm neck diameter (D2), an overall length of 85 mm, and a 30 mm projection (L1). It is compatible with S21 insert screws and K21 Torx keys. Please note: this holder is not compatible with the following inserts — 21 I 3.5 ISO, 21 I 8 UN, 21 I 7 UN, 21-11 BSPT, 21-11.5 NPT, and 21-11.5 NPTF.
Key Features:
- Ordering Code: SR0018H21
- Toolholder Type: Single Insert Mill-Thread
- Coolant Supply: Internal Coolant Bore
- Clamping Method: Screw
- Insert Pocket Size: 21 mm
- Cutting Diameter: 18 mm
- D1: 20 mm
- D2: 14.4 mm
- L: 85 mm
- L1: 30 mm
- Insert Screw: S21
- Torx Key: K21
- Restrictions: Not compatible with 21 I 3.5 ISO, 21 I 8 UN, 21 I 7 UN, 21-11 BSPT, 21-11.5 NPT, 21-11.5 NPTF
Carmex Precision Tools Ltd. is a world leader in innovative cutting tool technology. Offering solutions such as Thread Turning inserts, Mill-Thread holders, Spiral Mill-Thread, and Solid Carbide threadmills, Carmex provides precision, efficiency, and reliability to meet the demands of modern machining.
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