Kennametal 1878088 Cutoff Tool Block A2TZN 32mm

Product Description

The KENNAMETAL 1878088 is a Series A2 Cut-Off indexable tool block designed to hold cutoff blades in CNC lathe and turning center applications. Built to accept 32mm (1.2598 inches) blade height inserts, this block features a 1-inch square shank for secure, repeatable mounting in standard tool posts. The block measures 4.33 inches in overall length and 1.89 inches in overall height. Its neutral insert cutting direction and reversible design make it adaptable across left- and right-hand cutting setups. Machinists and tooling setters working in production turning environments will find it a direct-fit replacement for worn or damaged A2TZN-style blocks.

This tool block is suited for production cutoff and grooving operations on CNC lathes and manual turning equipment where consistent blade-to-shank alignment is critical. The A2TZN style is commonly used in job shops and production floors handling bar stock cutoff, parting, and light grooving. The 1-inch by 1-inch shank profile fits a wide range of standard tool post and quick-change tooling setups. No coolant-through capability is present on this block, so external coolant delivery should be planned accordingly when cutting materials that generate significant heat.

Key Features

• Reversible design allows the block to be flipped for flexible cutting setups without purchasing additional tooling
• Compatible blade height of 32mm (1.2598 inches) accommodates standard A2 series cutoff blades
• 1-inch by 1-inch shank cross-section provides rigid, low-overhang mounting in standard tool posts
• Neutral insert cutting direction supports straight-in parting and cutoff operations
• Overall length of 4.33 inches and shoulder height of 0.30 inches allow precise tool height setting
• No coolant-through ports — compatible with external coolant delivery systems

Compatibility

Designed for use with Series A2 Cut-Off indexable blades with a 32mm blade height. The MSC/Manufacturer cross-reference number for this block is A2TZN1632. Verify blade height and shank dimensions against your tooling system before ordering.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine before mounting or removing any tool block. Ensure the shank seating surfaces are clean and free of chips before torquing the tool post clamp screws to the machine manufacturer's specification. Confirm tool centerline height against the workpiece spindle axis before running any cutting operation.