Dormer Drill Bit HSS Set 29Pcs. No. 18 1/16-1/2″

Extended Tool Longevity – The TiN-Tip coating on the cutting zone significantly increases surface hardness and heat resistance, allowing for higher speeds and a much longer service life compared to standard bits.

Full Incremental Range – Includes every fractional size from 1/16″ to 1/2″ in precise 1/64″ steps, ensuring you always have the exact diameter needed for tapped holes or clearance fits.

Precision Accuracy – Features a 118° split point geometry (on sizes above 2mm/approx. 5/64″), which prevents “wandering” and allows for easy self-centering on the workpiece.

Superior Chip Control – Designed with high-precision flutes that facilitate rapid chip evacuation, preventing clogging and ensuring smooth, clean finishes even in deep holes.

Multi-Material Versatility – Optimized for drilling a broad spectrum of materials, including alloyed and non-alloyed steels, cast iron, and non-ferrous metals like aluminum and brass.

Industrial Professional Case – Housed in a heavy-duty “Round” or “Selector” style index case. The bits are stored in a tiered, easy-access layout that protects the cutting edges and makes size identification instant.

Standard Compatibility – Manufactured to ANSI standards, ensuring these bits meet the rigorous requirements of industrial mechanical and maintenance applications.