Protool Industrial Corp. is a deep hole drill, gun drill manufacturer established in 1999.With over 20 years experienced technicians and excellent service, we can bring high quality products to meet our customer's need.In order to maintain our position at the forefront of the gun drill industry, we have imported advanced CNC grinding machine and expanded our production scale.We offer wild range service of gun drill tool and spare part as following:New gun drill toolGun drill carbide head re-tippingGun drill tool re-straightenedCustomized drill guide bush and rubber guide bush