Sgs 53030 Solid Carbide Jobber Drill Bit No. 30 0.1285 in

Product Description

The SGS 53030 is a solid carbide jobber-length drill bit in wire gauge size No. 30, with a decimal diameter of 0.1285 inches. Built from micrograin solid carbide with a bright uncoated finish, it features a 150-degree drill point angle and a three-flute regular spiral design that promotes efficient chip evacuation at elevated cutting speeds. The web-thinned, tapered web configuration reduces entry thrust, making it well suited for consistent, accurate hole production in demanding materials. It carries a straight cylindrical shank and conforms to DIN 6539 standards. Licensed machinists, toolroom technicians, and CNC operators are the typical end users.

The SGS 53030 is intended for drilling cast iron, hardened steel, non-ferrous metals, and general-purpose steel in production and job-shop environments. With an overall length of 2.25 inches and a flute length of 1.25 inches, it fits standard drill chucks and collet holders used on CNC machining centers, drill presses, and hand-held power tools. The 5xD flute-to-diameter ratio supports hole depths up to 1.0 inch without step drilling in most applications. It is sold individually and is a Series 103 general-purpose grade bit.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance in hard and abrasive workpiece materials
• 150-degree split point angle reduces walking and lowers entry thrust compared to standard 118-degree geometry
• Three-flute design improves chip removal and supports higher feed rates relative to two-flute equivalents
• Web-thinned tapered web lowers required cutting force at the drill tip
• Bright uncoated finish maintains sharp cutting edges without coating buildup on non-ferrous materials
• DIN 6539 standard compliance ensures dimensional consistency for interchangeable tooling setups
• Diameter tolerance of plus 0.0000 to minus 0.0005 inches delivers precise hole sizing

Compatibility

Designed for use with standard straight-shank drill chucks and collet systems accepting a 0.1285-inch shank diameter. Primary workpiece materials include cast iron, hardened steel, non-ferrous metal, and steel. Coolant-through operation is not supported by this bit.

Installation Notes

This bit is installed by machinists or CNC operators into a compatible drill chuck or collet holder; ensure the shank is fully seated and the chuck is tightened to the manufacturer-specified torque range for the holding device used. Power down the spindle and confirm zero RPM before changing tooling. Do not exceed the maximum drilling depth of 1.0 inch without retracting and clearing chips. Inspect the cutting edges for chipping or wear before each use, as carbide tooling is brittle and susceptible to breakage if run with damaged geometry.