Compare Quick view Guhring SKU: SMT11604 GUHRING HSK80A 20mm Hydraulic Endmill Holder 95mm Pro GM300 4299 20.0800 (LOC252) MPN: GM300 4299 20.0800 Coolant Through: Yes Spindle Type: HSK-A 80 Shank Capacity: 20mm MSRP: Was: Price Now $199.95 1 In Stock Quantity Add to Your List