Sgs 56046 Straight-flute Drill Bit Wire 46 Carbide

Product Description

The SGS 56046 is a straight-flute solid carbide drill bit designed for precision drilling in ferrous and hardened materials. Manufactured from micrograin carbide in an uncoated bright finish, this bit carries a 140-degree standard point angle with web thinning to reduce thrust and improve centering. Wire size 46 corresponds to a 0.0810-inch diameter with a tight tolerance of +0.0000 to -0.0005 inches, making it appropriate for close-tolerance hole work. The overall length is 1.75 inches with a 0.75-inch flute length, suited for short, rigid setups in CNC or manual drilling operations. It meets DIN 6539 standards and is intended for use by machinists, tool-and-die workers, and maintenance professionals requiring reliable small-diameter drilling.

This drill bit is engineered for use in cast iron, hardened steel, and general steel workpieces, with secondary suitability for other hardened materials. The straight-flute geometry makes it particularly effective in brittle materials such as cast iron where chip evacuation via helical flutes is less critical. Typical applications include fixture work, toolroom drilling, and production machining where a small wire-gauge hole is required with tight dimensional control. The 0.609-inch maximum drilling depth and 1.05-inch shank length are well suited to short-reach, high-rigidity setups.

Key Features

• Micrograin solid carbide construction for hardness and wear resistance in ferrous materials
• 140-degree standard point angle with web thinning to reduce entry thrust and improve hole location
• Straight-flute design optimized for drilling brittle materials including cast iron
• Tight diameter tolerance of +0.0000 to -0.0005 inches for close-tolerance hole applications
• Uncoated bright finish maintains dimensional accuracy without coating buildup on cutting edge
• Conforms to DIN 6539 standard for consistent geometry and interchangeability

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide drill bit for applications requiring wire size 46 diameter holes in cast iron, hardened steel, and steel workpieces per DIN 6539 specifications.

Installation Notes

Installation and use of this bit should be performed by a qualified machinist or toolroom professional. Secure the shank fully in a precision collet or drill chuck rated for small-diameter tooling before operation. Verify spindle runout is within acceptable limits, as excessive runout will damage small-diameter carbide tooling. Power down and lock out the machine before changing or inspecting the bit.