Osg 630033111 Drill Bit Letter Q 8.43mm Solid Carbide

Product Description

The OSG 630033111 is a screw machine length drill bit designed for high-performance metal cutting in demanding shop and production environments. Built from solid carbide with a coated finish, this bit produces clean, accurate holes in steel, alloy steel, and cast iron. The 140-degree point with R-thinned web geometry reduces thrust and improves centering at entry. Overall length is 3.5039 inches (89 mm), with a flute length of 1.85 inches (47 mm). The 2xD flute-to-diameter ratio and tapered web configuration are matched to short-hole, high-feed applications. This bit is sized at letter Q, equal to 0.3319 decimal inch (8.43 mm). Licensed machinists and CNC operators are the primary users.

The 630033111 is suited for screw machine, CNC lathe, and drill press operations where a stubby, rigid bit profile reduces deflection in short-hole drilling cycles. It performs in production environments cutting steel, alloy steel, and cast iron. The straight-cylindrical shank seats directly in standard drill chucks and collet holders. Right-hand cut, spiral flutes, and no coolant-through design make this a straightforward drop-in for dry or flood-cooled setups where internal coolant delivery is not required.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• 140-degree point angle with R-thinned web reduces entry thrust and improves self-centering
• Coated finish extends tool life in steel and alloy steel cutting applications
• Screw machine length profile provides added stiffness and reduced runout versus jobber-length bits
• 2xD flute-to-diameter ratio matched to shallow, high-feed drilling cycles
• Straight-cylindrical shank compatible with standard chucks and collet toolholders

Compatibility

Designed as an OEM-style replacement and production tooling option for operations requiring a letter Q screw machine length solid carbide drill bit in the OSG Series 6300 line. Primary workpiece materials are steel, alloy steel, and cast iron.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Power down and lock out the machine spindle before changing tooling. Seat the straight-cylindrical shank fully in the chuck or collet and verify runout before cutting. Solid carbide bits are brittle compared to high-speed steel and should not be used in setups with excessive vibration or unsupported workpieces.