-. Binding : Misc. -. Brand : Gundlach -. Feature : 8.0mm - 5/16" PTC Drill CTCP8.0 / Easy Start up and rapid penetration in Porcelain tile. / Special carbide tip ensures accurate holes and virtually eliminates drill bit wander. / Max operating speed, is between 700 and 900 Rpm. / Spray water on the PTC bit when drilling, to keep the bit cool and sharp. -. Label : Gundlach -. Manufacturer : Gundlach -. MPN : PTB-516 -. NumberOfItems : 1 -. PartNumber : PTB-516 -. ProductGroup : Home Improvement -. ProductTypeName : TOOLS -. Publisher : Gundlach -. Studio : Gundlach -. Title : 5/16" Armeg PTC Carbide Porcelain Drill Bit