ZCCCT BT40-XM22-60 High Rigidity XM Shell Mill Holder Heavy Duty Face Milling Tool Holder Tool Holder CNC tools

The ZCCCT BT40-XM22-60 is a high-rigidity standard shell end mill tool holder independently manufactured by ZCCCT (Zhuzhou Cemented Carbide Cutting Tools Co., Ltd.). It complies with JIS MAS403 BT taper standard, featuring a 22mm locating bore for face mills, 60mm standard projection length and Type A drive key transmission structure. Made of high-alloy structural steel with integral quenching and precision grinding, this holder delivers strong torque transfer, minimal runout and outstanding stability during heavy-duty face milling, side milling and step surface roughing operations. It is widely matched with Ø22 bore indexable face mills for machining carbon steel, alloy steel, stainless steel and cast iron on vertical machining centers.

• Brand: ZCCCT (Zhuzhou Cemented Carbide, China’s top cutting tool manufacturer)
• Full Model Code: BT40-XM22-60
• Spindle Taper Standard: BT40 (7:24 taper, JIS MAS403 universal machining center taper)
• Clamping Type: XM Shell Mill Holder (for cutters with 22mm locating bore)
• Locating Bore Diameter (dm): 22 mm
• Projection Length (L): 60 mm standard short neck design
• Maximum Outer Diameter of Holder Body (D1): 50 mm
• Drive Key Width: 10 mm (Model CJ10 drive key)
• Fastening Screw Model: LDZ22 locking screw, auxiliary screw M4×10
• Matching Wrench: WH80L hex wrench
• Body Raw Material: High tensile alloy steel, fully quenched to HRC 58–62
• Surface Treatment: Black anti-corrosion oxidation coating, mirror polished taper surface
• Dynamic Balancing Grade: Pre-balanced G2.5 for stable medium-high speed cutting
• Transmission Form: Flat drive key + central locking screw dual torque transmission
• Standard Type: Type A single-sided key structure

• Carbon steel: 1018, 1045, A3 mild steel
• Alloy structural steel: 40Cr, 4140, pre-hardened mold steel
• Stainless steel: 304, 316, 420 stainless alloys
• Grey cast iron, ductile iron, aluminum alloy castings

• Heavy stock removal face milling for mechanical base plates, mold blanks
• Square shoulder side milling, large step surface semi-roughing & roughing
• Automotive structural parts, hydraulic valve block batch milling
• General machinery, mold base flat surface high-efficiency machining
• Medium-speed high-torque milling requiring rigid cutter clamping

• 60mm standard short neck design: Ultra-high integral rigidity, effectively suppress vibration during heavy cutting, reduce cutter chatter and improve surface finish
• 22mm precise locating bore: Tight clearance fit with shell mills, ultra-low radial runout for consistent machining precision
• Dual torque transmission structure: Flat drive key bears main cutting torque, central locking screw fixes cutter tightly, preventing cutter slipping under heavy load
• High-hardness quenched alloy steel body: Excellent anti-deformation performance, long service life under continuous heavy-duty milling
• Mirror-polished BT40 taper surface: Perfect contact with machine spindle, stable clamping and long spindle service life
• Unified industry standard, fully interchangeable with all brands of Ø22 bore face milling cutters