Kurt D50-33A | 11/16 x 5/8" Hardened Step Keys for 6" Vise

Description

The Kurt D50-33A hardened step keys are precision-engineered replacement keys supplied as a pair for use in Kurt 6-inch vise and D688 vise applications. Manufactured from iron and carbon steel and heat-treated for hardness, these 11/16 x 5/8" vise keys deliver high tensile strength and corrosion resistance for demanding workshop environments. Each key fits a 5/8" T-slot and is finished to tight dimensional tolerances for consistent engagement and minimal play in the jaw assembly. The D50-33A has a 1" nominal length and a listed weight of 0.2000 lbs per pair, making it measurable and installation-ready for milling and fixture setups. The component is compatible with standard Kurt dovetail configurations and is sourced from the United States to meet industrial purchasing requirements. Use these hardened step keys to restore original clamping accuracy or to upgrade worn keying components in production and maintenance workflows.

Product Features and Benefits

Sold as a pair for immediate replacement

Two matching Kurt D50-33A keys are supplied so both sides of the vise keyway can be replaced at once, reducing downtime and ensuring symmetrical clamping behavior.

Hardened iron and carbon steel construction

The Kurt 6-inch vise's heat-treated iron/carbon steel construction resists wear and maintains keyed alignment under the cyclic loads encountered in milling machine operations.

Precision 11/16 x 5/8" fit to 5/8" T-slot

Sized to engage a 5/8" T-slot with a nominal 1" length, these step keys hold positional accuracy and limit lateral movement for fixture repeatability.

High tensile strength and corrosion resistance

Material selection and surface finish deliver elevated tensile capacity and improved corrosion resistance for workshop and production environments.

Frequently Asked Questions

Is this compatible with D688 Vise Compatibility?

Yes—the Kurt D50-33A is compatible with D688 vise keyways and fits the same T-slot configuration.

Are these considered high-tensile vise accessories?

Yes—they are manufactured from high-tensile iron and carbon steel for strength under load.

Can these be used as hardened step keys for milling machine setups?

Yes—they are hardened step keys suitable for milling machine jaw and fixture applications.

Do these count as iron and carbon steel vise components?

Yes, the keys are iron and carbon steel components finished to industrial tolerances and sold as a pair.

Warning:

This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

For more information, visit www.P65Warnings.ca.gov

Warning:

This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

For more information, visit www.P65Warnings.ca.gov