Description
Granite remains the workhorse material of the countertop industry, and the eased/straight edge on a 3cm slab is the single most fabricated edge profile combination in residential stonework. This template delivers the standard polishing sequence that has been refined through decades of granite fabrication, starting with a 20mm roughing finger bit at 3500 RPM and progressing through eight polishing positions to a final buff at 4000 RPM. At 1.181 inches of profile height, the 3cm granite edge provides a solid, substantial appearance without requiring lamination. The straightforward geometry makes it the fastest edge to fabricate, keeping labor costs low while delivering the clean aesthetic that most homeowners prefer.
Related Templates
Eased/Straight Edge Profile (Granite) - 2cm+2cm Laminated
Eased/Straight Edge Profile (Marble) - 2cm+2cm Laminated
Eased/Straight Edge Profile (Porcelain) - 2cm+2cm Laminated
Eased/Straight Edge Profile (Quartz (Engineered)) - 2cm+2cm Laminated
Granite remains the workhorse material of the countertop industry, and the eased/straight edge on a 3cm slab is the single most fabricated edge profile combination in residential stonework. This template delivers the standard polishing sequence that has been refined through decades of granite fabrication, starting with a 20mm roughing finger bit at 3500 RPM and progressing through eight polishing positions to a final buff at 4000 RPM. At 1.181 inches of profile height, the 3cm granite edge provides a solid, substantial appearance without requiring lamination. The straightforward geometry makes it the fastest edge to fabricate, keeping labor costs low while delivering the clean aesthetic that most homeowners prefer.
Installation Overview
Fabricating an eased/straight edge on 3cm granite is the most straightforward operation in the edge profile catalog, making it an excellent training template for new CNC operators. Position the granite slab securely on the CNC bed with adequate clamping pressure along the edge being profiled. Load the DXF template and align the toolpath origin to the top front corner of the slab. The 20mm roughing finger bit runs at 3500 RPM with a feed rate of 60-80 IPM, which provides efficient material removal on most granite varieties. Granite's interlocking crystalline structure makes it forgiving of minor feed rate variations, but maintaining consistency produces the best results. After roughing, progress directly into the polishing sequence starting with 50 grit metal bond at 2800 RPM. Each subsequent position increases RPM incrementally through 100, 200, 400, 800, 1500, and 3000 grit before the final buff pad at 4000 RPM. The eased corner at the top of the profile requires only a light break to remove the sharp 90-degree edge. Water flow of 2 GPM is sufficient for granite at these parameters. Total fabrication time averages 1.5 to 2 minutes per linear foot for experienced operators.
CNC Cutting Notes
Granite uses standard baseline parameters. Roughing at 3500 RPM with 60-80 IPM feed rate provides clean material removal. Polishing begins with 50 grit metal bond at 2800 RPM and advances through each position with 200 RPM increments up to the 4000 RPM buff. Use 0.5mm stepover for consistent coverage. Water flow of 2 GPM is adequate. Granite is the most forgiving natural stone for edge fabrication, tolerating minor variations in feed rate and pressure. Darker granites with higher quartz content may benefit from a slight RPM increase of 100-200 at the final polishing positions.
Material Compatibility
This template is optimized for natural granite in all its varieties, from light-colored stones like Bianco Romano and Colonial White to dark, dense varieties like Absolute Black and Ubatuba. Granite's Mohs hardness of 6-6.5 makes it the benchmark material for countertop fabrication parameters. Softer granites with high feldspar content may polish faster, while harder varieties with elevated quartz percentages may require slightly more time at each grit stage. This template should not be used for engineered quartz, which requires reduced RPMs, or for marble, which needs lower speeds and finer starting grits.
Where to Buy
Standard granite polishing pad sets are the most widely available CNC consumable in the industry. GranQuartz, Braxton-Bragg, Weha, Alpha Professional Tools, and virtually every stone tool distributor carry compatible pads.