Value Collection 375-1407 Boring Bar Set 10 Piece M35 Cobalt

Product Description

The VALUE COLLECTION 375-1407 is a 10-piece boring bar set made from M35 cobalt high-speed steel with a bright, uncoated finish. Designed for internal boring operations on a lathe or boring machine, these bars cover a range of hole diameters from 3/8 inch up to 5/8 inch minimum bore diameter depending on the bar selected. All bars feature right-hand cutting direction and a 5/8 inch shank diameter. Overall length ranges from 2-5/8 inches on the smallest bar to 4-5/8 inches on the largest. This set is suited for machinists, toolmakers, and maintenance professionals who need a matched set of boring bars for light to medium material removal in bored holes.

This set is appropriate for use in manual lathes, turret lathes, and light CNC turning centers where a 5/8 inch shank toolholder is available. The graduated bar sizes allow the user to select the correct bar for the bore depth and diameter required on each job. The M35 cobalt construction provides increased heat and wear resistance compared to standard M2 high-speed steel, making these bars suitable for cutting harder workpiece materials including alloy steels and stainless. Each bar cuts right-hand, which is the standard orientation for conventional lathe turning operations.

Key Features

• M35 cobalt steel construction for improved heat resistance and edge retention over standard HSS
• 10 bars per set covering minimum bore diameters from 3/8 inch to 5/8 inch
• Maximum bore depth ranges from 1-1/8 inches on the smallest bar to 3-1/8 inches on the largest
• 5/8 inch shank diameter for use in standard lathe toolholders and turret blocks
• Right-hand cutting direction compatible with conventional lathe setup
• Uncoated bright finish for easy inspection and regrinding
• Wooden stand included for organized storage and bar identification

Compatibility

Designed for use in lathe toolposts, turret toolholders, and boring heads that accept a 5/8 inch round shank. Suitable for right-hand boring operations on manual and light CNC turning equipment.

Installation Notes

Install boring bars in a rigid toolholder and ensure the shank is clamped securely with minimal overhang to reduce chatter. Power down and lock out the machine spindle before changing or adjusting tooling. Select the bar whose minimum bore diameter and maximum bore depth match the intended hole geometry before beginning the operation. Regrinding the cutting tip restores edge sharpness and can extend the service life of each bar.