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SG Flat Drill

Product catalog summary

Overview: The SG Flat Drill SGEZ is a versatile large-diameter flat drill from NACHI's flat series, designed for high performance and cost efficiency. It features high alloy HSS for durability and an SG coating for extended tool life. The drill's design ensures good chip ejection and precise drilling.

Specifications: The SGEZ drill is available in various diameters ranging from 16mm to 50mm. It is designed for use with water-soluble cutting fluids and is suitable for drilling through and blind holes in materials like carbon steels, stainless steels, and cast irons.

Cutting Conditions: The document provides detailed cutting conditions for different tool diameters, including cutting speed, feed rate, and depth of cut. For example, a 50mm tool diameter requires a cutting speed of 25m/min and a feed rate of 80mm/min for through holes in S50C material.

Performance Comparison: The SGEZ drill is compared with end mills, showing superior wear resistance and performance after drilling 216 holes. It is particularly effective in reducing burrs and maintaining hole accuracy.

Material Compatibility: The drill is compatible with a wide range of materials, including structural steels, carbon steels, stainless steels, hardened steels, titanium alloys, nickel alloys, aluminum alloys, and copper alloys. It is not recommended for use with very high hardness steels (50-65HRC).

Usage Recommendations: Adjust drilling conditions based on machine rigidity and workpiece clamping. Pre-drilling is advised for machines lacking stiffness. Ensure sufficient cutting fluid supply and consider step feeding for deep drilling.

Warnings: The document advises covering the work area to prevent chip scattering and recommends adjusting conditions for drilling depths of 1D or less.

Additional Information: The document includes contact information for NACHI's sales offices and emphasizes the importance of consulting with sales representatives for pricing and stock availability.

Catalog excerpts

SG Flat: Drill SGEZ

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I Added larger type to NACHI's multi-purpose FLAT Drill series. I High cost performance with high alloy HSS. I Longer tool life with SG-coating superior chipping-resistance. I High rigid and well-balanced flute geometry provide good chip ejection and accurate drilling. Cutting face Comparison of wear after 216 hole drilling Cutting conditior Comparison with the end mill drilling Cutting fluid Work Material

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Just one drill handles counter boring angled surfaces, and tapping blind holes Available for Japan customers only.

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Drilling Conditions

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All NACHI-FUJIKOSHI CORP. catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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