LATHE CUT OFF PARTING TOOL HOLDER & WRENCH Holder Size 3/8"x 7/8"x 5" Heat treated hardened body  Machined to precise tolerances  Support the blade over a wide area, reducing the chance of blade breakage With 4 Pieces Of Cut Off Blade ( 3/32”x 5/8”x 5” )  HSS M2 Grade Hardened & Ground Description Fit almost all common tool holders Hardened and ground for Accuracy  Trapezoidal section to fit all standard tool holders Size Of Blade Width Of Blade - 3/32" Height Of Blade -5/8" Length Of Blade -5" Size Of Holder Width  - 3/8" Height  - 7/8" Length  - 5"