Using the solid carbide boring bar Sandhog SCKCR2020K09 allows you to maximize stability, ensure excellent surface finish, and overcome depth-to-diameter ratio limitations. This cutting tool, specifically designed for high-precision CNC turning centers, is the optimal solution for complex internal boring, grooving, and contouring operations where rigidity is critical.
Key features and benefits:
Unmatched rigidity and damping: SCKCR2020K09 is made of high-quality microcrystalline solid tungsten carbide, whose rigidity is approximately 3 times that of similar tools with steel shanks. This significantly reduces vibration, chatter, and tool deflection, enabling stable machining of parts at greater cutting depths and with longer overhangs.

Excellent surface finish: The inherent stability of the solid carbide monobloc design minimizes harmonic vibrations, enabling excellent internal surface finish and consistently holding tighter tolerances, typically without the need for secondary finishing operations.

Optimized for deep recess machining: 20 mm diameter (D1) and 200 mm length (L1) make this bar an ideal choice for machining deep recesses. The SCKCR type clamping head provides excellent fixation and blade clearance. Its rigidity enables efficient machining even in cases where tooling may fail.

Precision-ground shank and geometry: the bar features a ground round shank with a diameter of 20 mm and a precise hole depth of 9 mm (H) for the locking screw, ensuring perfect alignment in the CNC chuck, as well as reliable and repeatable clamping, which is crucial for high-precision machining.

Durability and wear resistance: compared to high-speed steel (HSS) or heavy metal rods, tungsten carbide offers excellent wear resistance and heat resistance, ensuring a longer tool service life and stable performance.

Technical specifications:

Cutting tool type: solid carbide boring bar

ISO designation: SCKCR2020K09

Boring type: SCKCR (90° lead angle, clamp locking with top clamp)

Shank diameter (D1): 20 mm

Overall length (L1): 200 mm

Depth of cut: depends on insert size (see compatible inserts below)

Hole depth (H): 9 mm

Through-coolant: optional (depends on the specific supplier model)

Recommended compatible inserts:

The holder is designed for use with inserts of standard geometry per industrial standard of corresponding thickness, including CNMG, CNMM, etc. Specify the exact insert dimensions (e.g., CNMG-1204xx) depending on the required depth of cut and application. Type C (80°, rhombic) turning inserts are used.
Ideal application areas:
Boring of deep holes and turning of internal bores

Machining of high-strength materials (e.g., stainless steel, chromium-nickel alloys, titanium, hardened steel)

High-precision finishing of internal bores

Grooving and profiling of internal bores

Operations accompanied by vibration and poor surface quality