Gloves & Safety Apparel. Auto & Truck Maintenance. Machining, Bearings & V-Belts. MICRO-QUIK QTH-105 Quick Change Tool Holder – Steel. Boring Bar Holder, Head Dia. 3/4 in, Shank Dia. 5/8 in, Overall Length 2.8 in, Coolant Fed Coolant Through, Finish – Machining Black Oxide, Material – Machining High Speed Steel, Product Type Quick Change Holder, Series QTH. View more great items! Other Business & Industrial. Electrical Boxes and Enclosures. Light Industrial Equipment & Tools. Electrical Outlets & Recepticles. Add to Favourite Sellers. Sign up to Newsletter. This listing is currently undergoing maintenance, we apologise for any inconvenience caused.