Sgs 66511 Solid Carbide Jobber Drill 3.80 Mm 135 Deg

Product Description

The SGS 66511 is a solid carbide jobber-length drill bit engineered for high-performance metal cutting applications. Built to DIN 6537 standards, it features a 135-degree split point, spiral flute geometry, and a Ti-NAMITE-X coating designed to extend tool life and reduce heat buildup at the cutting edge. The drill measures 3.80 mm in diameter with an overall length of 2.9134 inches and a flute length of 1.4173 inches. Web-thinned point geometry improves chip evacuation and reduces thrust force during entry. The straight-cylindrical shank at 6.00 mm diameter seats securely in standard drill chucks and collet holders. Machined from micrograin carbide stock, this bit is suited for demanding production environments where tool longevity and hole quality are priorities.

The SGS 66511 is designed for drilling in ferrous and non-ferrous metals, stainless steel, cast iron, and similar difficult-to-machine materials. The coolant-through design supports internal coolant delivery for extended deep-hole drilling runs, with a maximum drilling depth of 1.6929 inches. At a 5xD flute-to-diameter ratio, it handles deeper bores without excessive runout. It is appropriate for CNC machining centers, drill presses, and multi-spindle setups running controlled feed and speed parameters. Machinists, tool and die makers, and production floor technicians are the primary installers and users of this tooling.

Key Features

• Solid micrograin carbide construction for extended tool life in hard and abrasive materials
• Ti-NAMITE-X coating reduces friction and thermal wear at the cutting zone
• 135-degree web-thinned split point lowers entry thrust and improves self-centering
• Coolant-through design supports internal coolant delivery for deep-hole applications
• Straight-cylindrical shank compatible with standard drill chucks and ER collets
• Manufactured to DIN 6537 specification for consistent dimensional accuracy

Compatibility

Designed as an OEM-style replacement or direct tooling selection for CNC machining centers, drill presses, and multi-spindle machines accepting a 6.00 mm straight-cylindrical shank in the 3.00 mm to 4.00 mm drill diameter range.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the shank fully and evenly in the collet or chuck to the recommended grip length to prevent runout and premature breakage. Carbide tooling is brittle and requires stable, vibration-free setups with appropriate feed and speed parameters for the workpiece material.