. HSS Titanium Coating - Classic HSS construction with titanium coating for capability and durability
. Eliminates Wobbling & Chatter - the final straighten process is added. which keep the bit in a straight line during rotation and reduce chatter
. Flutes Form - 2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process
. Organized Holder - A drill bits holder with size index is included in the set for easy storage and organizing
. Meet Your Demands - Great drill bits set for metal/wood/plastic countersink. Suitable for Home DIY, and General Building/Engineering Use