Cleveland C70269 11/32 in Screw Machine Drill Bit Hss

Product Description

The CLEVELAND C70269 is a screw machine length drill bit designed for high-production drilling in metal fabrication, mechanical assembly, and general machining applications. Built from high-speed steel with a bright/uncoated finish, this bit features a 135-degree split point and web-thinned construction that reduces walking on entry and lowers the thrust force needed to penetrate workpiece material. The shortened overall length of 3 inches improves rigidity compared to jobber-length bits, making it well suited for close-quarter drilling on drill presses and CNC turret setups. Diameter is 11/32 inch (0.3438 inch decimal) with a diameter tolerance of +0.0000 to -0.0010 inch.

This bit is used in production and job-shop environments where a stiff, short-body drill is needed to hold tight positional tolerances. Primary workpiece materials include alloy steel and aluminum. The straight-cylindrical shank fits standard drill chucks and quick-change toolholders. Typical install scenarios include bench drill presses, turret lathes, and CNC drilling centers operating in light to heavy-duty metalworking cycles. The Series 2330 designation and NAS 907 Type C specification make it a recognized standard in aerospace and general industrial procurement.

Key Features

• 135-degree split point reduces walking and lowers drilling thrust on entry
• Web-thinned, parallel-web construction for improved chip evacuation
• Screw machine length (3 inches OAL) provides extra rigidity over jobber-length bits
• High-speed steel construction handles alloy steel and aluminum workpieces
• Right-hand cut with 2 spiral flutes and 1-11/16 inch flute length
• Meets ASME B94.11M and NAS 907 Type C standards

Compatibility

Designed as a standard screw machine length replacement drill bit for any drill chuck or toolholder accepting a 0.3438 inch straight-cylindrical shank, suitable for drill presses, turret lathes, and CNC drilling applications in metalworking environments.

Installation Notes

Installation is performed by machinists and tool-and-die professionals using a standard keyed or keyless drill chuck rated for the shank diameter. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the shank fully into the chuck to the recommended engagement depth to prevent runout. Inspect the cutting edges for wear or chipping before each production run, as a damaged split point will increase thrust and reduce hole quality.