Techniks 04897 ER20 Straight Shank Tool Holder

Description:

The Techniks 04897 ER20 Straight Shank Tool Holder is used in CNC machining systems to provide rigid, high-precision tool holding for milling, drilling, tapping, and reaming applications. Commonly installed in CNC machining centers, milling machines, production machining cells, mold and die equipment, and OEM metalworking machinery requiring an ER20 collet system with an extended straight shank. Maintenance teams, CNC machinists, and manufacturing engineers use this ER20 straight shank tool holder for tooling replacement, precision machining, retrofit projects, and extending tool reach while maintaining exceptional concentricity.

Applications:

The Techniks 04897 ER20 Straight Shank Tool Holder is designed for precision machining applications requiring secure tool clamping, extended reach, and low runout. It is widely used in aerospace manufacturing, automotive production, mold and die machining, medical device manufacturing, general metalworking, and high-speed CNC machining environments where rigidity and repeatable tool positioning are essential.

Technical Specifications:

• Manufacturer: Techniks Precision Tooling
• Manufacturer Part Number (MPN): 04897
• Product Type: ER20 Straight Shank Tool Holder (Collet Chuck Extension)
• Collet Series: ER20
• Shank Type: Straight Shank (STRSHK)
• Shank Diameter: 1 in (25.4 mm)
• Projection Length: 140 mm (5.51 in)
• Overall Length: 167.9 mm (6.61 in)
• Body Diameter: 1 in (25.4 mm)
• Workpiece Side Body Diameter: 34 mm (1.339 in)
• Nose Diameter: 28 mm
• Taper Length (Gauge Length): 28 mm
• Collet Capacity Range: 0.5 mm to 14 mm (0.019 in to 0.55 in)
• Material: Hardened 8620 Alloy Steel
• Maximum Runout (T.I.R.): 0.0001 in (0.0025 mm)
• Maximum Speed: 25,000 RPM
• Coolant System: Through-Spindle Coolant
• Backup Screw Thread: M10 × 1.5
• Primary Function: Precision Tool Holding for Milling, Drilling, Reaming, and Tapping
• Service Application: Replacement, Retrofit, Precision Machining, and Preventive Maintenance

Common Replacements:

• Techniks Precision Tooling 04894 ER20
• Techniks Precision Tooling 04898 ER25
• Techniks Precision Tooling 04900 ER32