2SPO (NC Spotting Drill)

Product catalog summary

Overview: This document provides technical specifications and guidelines for carbide 2-flute NC spotting drills, including details on dimensions, coatings, materials, and cutting conditions.

Specifications:

Diameter Range: 0.3mm to 16mm with specific tolerances for each size.
Coating Options: Available in uncoated and Si-based PVD coated versions for enhanced wear resistance.
Angle: Options include 90° and 120° angles.
Shank Diameter: Ranges from 3mm to 4mm.
Overall Length: Varies from 40mm to 150mm depending on the drill size.

Materials and Applications:

Suitable for machining hardened steels (up to HRc50), pre-hardened steels, tool steels, and cast irons.
Applicable for non-ferrous and non-metallic materials using fine WC grade.
Resin and plastic machining possible with both coated and non-coated drills.

Cutting Conditions:

Speed and Feed Rates: Vary based on material and drill diameter, with specific ranges provided for different materials such as mild steels, aluminum alloys, and stainless steels.
Recommendations: Use machines with low vibration and good rigidity, especially for diameters ≤1mm. Shrink-fit chucks are recommended for optimal performance.
Adjustments: Cutting conditions should be adjusted based on machining geometry, purpose, and machine capabilities. If overheating or burrs occur, RPM and feed should be adjusted proportionally.

Additional Notes:

For aluminum series other than A7075, consult the manufacturer for specific drilling conditions.
Ensure vibration tolerance management within 3μm for small diameters.

Catalog excerpts

Carbide 2 Flutes NC Spotting Drills 실리콘계 코팅(Si) 처리하여 내마모성이 우수합니다. 헬릭스 타입 2날을 적용하여 센터링 작업에 적합합니다. 코팅과 비코팅으로 구분하여 수지, 아크릴 등의 가공도 가능합니다. 미립자 초경합금을 채택하여 다양한 비철합금 및 목업의 피삭재 영역에 적용 가능합니다. • Drills for various work materials, hardened steels(~HRc50), pre-hardened steels, tool steels and cast irons • • • • Good wear resistance by Si-based PVD coating. Optimum for centering with helix 2flutes. Resin, plastic machining applicable witn coated or non coated endmill. Applied fine WC grade optimized for various non-ferrous and non-metallic work materials. D Size Order Number 비코팅 Un coated Flute Length Overall Length

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PCD End Mill AL-alloy Si <1% AL-alloy Si <12% AL-alloy Si >12% Magnesium alloy Cooper alloy Brass ally GFRP CFRP Graphite Mild steels / Free cutting steel Structural steels / Carbon Steels /Gray cast irons Tool steels / Mold steels Cutting Condition 일반구조강 / 쾌삭강 Cutting Condition 진동이 적고 강성이 좋은 공작기계 사용요망합니다 (Ø1 이하 사용시 진동 허용 관리 3㎛이내 일것.) 가급적 열박음 척을 추천합니다. 상기 절삭 조건은 참고 수치이므로 실 가공시 가공 형상, 가공 목적, 적용 기계에 따라 조건 변경 요망합니다. 조건표가 기계의 최대 스핀들 속도를 초과하거나 버 및 적열 현상이 발생할 때 스핀들 속도와 이송 속도를 비례하여 조정하십시오. • Use a machine with low vibration and good rigidity (Ø1 or less, the vibration tolerance management should be...

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