GUHRING Core Drill Bits, 10 pcs, 3.18mm (1/8” - 0.1251968503937008”), Left Handed, HSS, USA, New-Other: These are top of the line American made drill bits. These are left handed High Speed Steel piloted core drills. Core drills are typically used for finishing and enlarging pre-existing holes that have been drilled or punched. You can enlarge a hole up to 60% of the core drill diameter. These drill bits are sold with the Kent’s Tools 30 Day Satisfaction Guarantee.
