Cleveland C60835 Straight Flute Tap 3/4-10 Unf Left Hand

Product Description

The CLEVELAND C60835 is a straight flute tap designed for left-hand thread cutting in through-hole applications. Built from high-speed steel with a bright, uncoated finish, it cuts a 3/4-10 UNF thread profile to a 2B class of fit with an H3 thread limit. The taper chamfer makes it well suited for starting threads cleanly in through-holes. With 4 flutes and a 1-13/16 inch thread length, it provides adequate chip clearance and engagement for production and maintenance threading tasks. Machinists, tool-and-die workers, and maintenance technicians use this tap on manual and CNC lathes, drill presses, and tapping heads.

The C60835 is intended for through-hole threading operations across a range of materials including cast iron, non-ferrous aluminum, stainless steel, and steel. Its left-hand thread direction makes it the correct choice wherever left-hand fasteners or reverse-thread assemblies are required. At 3-13/16 inches overall length with a 0.590 inch shank diameter, it fits standard tap holders sized for this class of tooling. This is a Series 1002L tap from Cleveland, suited for both shop and field maintenance environments.

Key Features

• Left-hand thread direction for reverse-thread and left-hand fastener applications
• Taper chamfer for easy thread entry in through-hole work
• High-speed steel construction handles cast iron, aluminum, stainless steel, and steel
• 4 flutes with H3 thread limit for consistent 2B class of fit results
• Bright, uncoated finish — no coating buildup to affect thread tolerance
• Series 1002L design with 0.590 inch shank and 11/16 inch square drive

Compatibility

Designed for through-hole threading of 3/4-10 UNF left-hand threads in cast iron, non-ferrous aluminum, stainless steel, and steel workpieces. Fits standard tap holders and tapping heads accepting a 0.590 inch shank diameter with an 11/16 inch square drive.

Installation Notes

This tap is installed and operated by qualified machinists or maintenance technicians using appropriate tap holders, tapping heads, or CNC tooling. Always confirm that the workpiece is securely fixtured and the spindle direction is set for left-hand rotation before beginning the tap cycle. Use a cutting fluid compatible with the workpiece material to extend tool life and improve thread finish. Inspect the tap for wear or chipping before each use, and never force a tap that has stopped advancing, as breakage in the bore is difficult to recover.