S12K-SCLCR09 Boring Bar

The S12K-SCLCR09 boring bar is a versatile internal turning tool designed for CCMT and CCGT 09T3 positive inserts. Featuring a 12 mm shank diameter and a rigid steel body, this holder delivers excellent stability, smooth cutting action, and high surface finish quality in a wide range of internal machining applications. Designed for precision boring, internal turning, profiling, and finishing operations, the positive insert geometry significantly reduces cutting forces compared to negative insert systems. This makes the holder ideal for machining steel, stainless steel, aluminum alloys, brass, cast iron, and other engineering materials. The reduced cutting pressure also helps minimize vibration, improving dimensional accuracy and extending tool life. The S12K-SCLCR09 boring bar is especially suitable for medium-sized bores where a balance between accessibility and rigidity is required. Its robust construction allows reliable machining performance even in deeper internal turning operations. When used with polished CCGT inserts, the tool produces excellent surface finishes in aluminum and non-ferrous materials, while CCMT inserts provide dependable performance in steel and stainless steel applications. Specifications: • Shank Diameter: 12 mm • Holder Style: SCLCR • Insert Type: CCMT / CCGT 09T3 • Approach Angle: 95° • Hand: Right-Hand • Minimum Bore Diameter: 16 mm • Overall Length: 150 mm • Application: Internal Turning & Precision Boring Compatible Inserts: • CCMT 09T302 • CCMT 09T304 • CCMT 09T308 • CCGT 09T302 • CCGT 09T304 • CCGT 09T308 Recommended Diamond Cut Grades: • TCMT 090204-SL OS8225 • CCMT 09T3 Stainless Steel Grades • CCGT 09T3 Aluminum Grades The S12K-SCLCR09 boring bar offers an excellent combination of rigidity, accessibility, and cutting performance. It is a reliable choice for workshops and production environments requiring precise internal machining, consistent surface finishes, and efficient chip evacuation.