The ThunderTwist’s TriCarb grade tip guarantees longer life with faster penetration due to increased chiseling action. ThunderTwist’s flute design, combined with copper brazing alloy creates the most reliable drill bit on the market. It is made with high quality American chrome-molybdenum nickel steel that is vacuum heat treated, and shot-peened for superior strength under the roughest conditions.
High Speed Steel Annular Cutters 2″ with a drill depth of 2″ feature unique teeth geometry, provide clear cutting, fast feed rate, less vibration, smooth hole surface and long tool life. These HSS annular cutters – 2″ can be widely used in drilling steel, copper, aluminum, stainless steel and plastic, in either plate or pipe form. HSS Euroboor annular cutters feature teeth geometry which is optimized for use on single layer metal work pieces, ensuring the fastest and best drill performance. The rest material created with the use of these annular cutters is the signature Euroboor slug. The rim on this slug is exactly what prevents our HSS annular cutters – 2″ from penetrating the second layer of material.
Durable hardened cutting edge for long life in tough materials, including nail-embedded wood. Fully-forged bit for maximum durability. Wide flutes for maximum chip removal and less binding. Aggressive screw-pitch for faster drilling. 5/16″ – 1-1/2″ in 6″ and 18″ length.
These Cobalt Jobber Drill Bits are made from high-speed steel, with a 118° angle tip, and a cobalt layer finish. These bits are in Fractional size. American Wire Size bits are listed separately. Click the Jobbers tab below to see more.
Made from S2 modified shock resistant steel for professional performance and durability. Featuring a patented spiral torsion zone absorbs impact and extends bit life. Proprietary precision CNC machined tips for excellent fit in fastener recess. Tested to outperform all leading brands in lifecycle and tip failure testing.
The Duo-Bit Masonry Bits feature a high speed steel shank and carbide tips for durability. From drilling concrete to powering through brickwork, these masonry drill bits are excellent for a variety of heavy duty applications! 1/8″ – 1″ in 3″ and 6″ length
Made especially for drill presses and milling machines, these Silver & Deming drill bits are 6″ long with a 3″ drilling depth. They all have a 1/2″ shaft.
Aircraft drill bits are long drill bits originally designed for use in the aircraft industry where they often need to drill holes reaching through deep cavities, and then through thin materials. You will find them invaluable for drilling holes in tight spaces, and drilling holes through long or wide pieces of wood.
One particular type of reduced-shank drill bits are Silver & Deming (S&D) bits, whose sets run from 33/64″ to 1″ drill body diameter with a standard 1/2″ reduced shank for all. This allows drill presses with 1/2″ chucks to run the larger drills. S&D bits are 6″ in length with a 3″ drilling depth.
Jobber Drill Bits are made from high-speed steel, with a 118° angle tip, and a black oxide finish. These bits are in Fractional size. American Wire Size bits are listed separately. Click the Jobbers tab below to see more.