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CNC Wire Tapping Holder Tap Chuck with HRC46° Hardness and 0.005mm UP Grade Precision for ER8-ER40 Collets

Name: CNC Wire Tapping Holder Tap Chuck with HRC46° Hardness and 0.005mm UP Grade Precision for ER8-ER40 Collets
Brand: Guangdong Autofor Precision Intelligent Technology Co., Ltd.

Professional CNC wire tapping holders and tap chucks made from SUJ2 high carbon bearing steel with HRC46° hardness. Features elastic contraction, DIN 6499 standard compliance, and precision grades from 0.015mm to 0.005mm. Ideal for gripping drills, taps, milling cutters, and reamers with enhanced stability and wide application range.

Brand Name GPDC

Function elastic shrinkage, wide application range, and variability

Usage holding drills, wire taps, milling cutters, reamer, etc.

Place of Origin China

Precision grade S,A.UP

Price Negotiable

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Product Description

CNC Wire Tapping Holder & Tap Chuck

Professional tapping chucks, tap holders, and functional drilling/tapping holders designed for safety and precision threading applications.

CNC wire tapping holder and tap chuck product image

Close-up view of tap chuck components and construction

Product Specifications

Material: SUJ2 high carbon bearing steel

Hardness: HRC46°

Surface Roughness: Rz2.5

Processing: Strict honing processing and concentricity according to DIN 6499 standard

Precision Grades

S Grade: 0.015mm | A Grade: 0.01mm | UP Grade: 0.005mm (Recommended for HSP nuts - Better stability)

Applications

Gripping drills, taps, milling cutters, cutters, reamers, and various tools

Key Features

Elastic contraction function for wide application range

Rich variability and adaptability

Enhanced stability with UP grade precision

Note: Please specify required accuracy level when ordering

Precision accuracy specifications table for tap chucks

ER Elastic Collet Specifications

Accuracy	Item	Clamp Diameter (mm)
0.01	A-ER8	1-5
0.01	A-ER11	1-7
0.01	A-ER16	1-10
0.01	A-ER20	1-13
0.01	A-ER25	2-16
0.01	A-ER32	2-20
0.01	A-ER40	3-26
0.005	UP-ER8	3-5
0.005	UP-ER11	3-7
0.005	UP-ER16	3-10
0.005	UP-ER20	3-13
0.005	UP-ER25	3-16
0.005	UP-ER32	3-20
0.005	UP-ER40	3-26

Company Background

AUTOFOR Company is a global leader in precision cutting technology, specializing in high-precision drill chucks and cutting solutions. With over 10 invention patents, 600 formulations, and 30,000 specifications, we set industry standards for precision and reliability.

Our resin grinding wheels achieve 0.125mm thickness, setting world records for thinness, with all products certified by SGS for environmental compliance.