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A high quality American-made drill bit with a 1/2" reduced shank (silver & deming) made by Triumph Twist Drill Co. The material is high speed steel with cobalt steel, enabling these drill bits to have increased heat resistance when drilling into materials. They are great for heavy duty construction use. The drill bits have a 118° split point & they will work in a variety of materials including stainless steels, iron & cast materials, low & high carbon steel, high alloy steel, tough & medium, high tensile strength alloys. Made in the USA.
Triumph Twist Drill has manufactured High-Quality cutting tools for over 50 years. Starting in 1952, founder Harry Beck set out to provide customers with a product that the drill industry had been lacking. Harry, along with his son Jim and Cy Brock, decided to enter the small drill business and create quality, handmade products with the customer in mind.
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Drill Bit Diameter Decimal Equivalent Shank Diameter Flute Length Overall Length Model 17/32" .5312 1/2" 3" 6" 092034 9/16" .5625 1/2" 3" 6" 092036 19/32" .5938 1/2" 3" 6" 092038 5/8" .6250 1/2" 3" 6" 092040 21/32" .6562 1/2" 3" 6" 092042 11/16" .6875 1/2" 3" 6" 092044 3/4" .7500 1/2" 3" 6" 092048 13/16" .8125 1/2" 3" 6" 092052 7/8" .8750 1/2" 3" 6" 092056 15/16" .9375 1/2" 3" 6" 092060 1" 1.0000 1/2" 3" 6" 092064