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The Irwin Tools 63119 19/64-Inch Cobalt 135-Degree-Jobber Length-Bulk - Pack of 6 is made of M35 Cobalt Steel. The cobalt steel helps discipate heat, which is the killer of all drill bits, providing it with longer life and more durability. The cobalt construction allows this bit to drill abrasive materials like Stainless Steel and Cast Iron which are extremely tough on traditional high speed steel drill bits. The bit has a 135-degree split point tip to help eliminate walking as you start to drill the hole in metal. The straight shank works in both keyed and key-less chucks.
From the Manufacturer
American Saw's Lenox Hand Hacksaw Blades feature bi-metal construction, a spring steel back, a tooth hardness of Rc64-66, and an M-2 high speed steel cutting edge. These blades are shock and shatter resistant, have high heat resistance, and are virtually unbreakable. They are safer than solid high speed steel blades and outperform carbon steel up to 10 to 1. They provide a freer cutting action and smoother cut. This model has 24 teeth per-inch and measures 12 inches long by 1/2-inch wide.
Anthony Bramble
Reviewed in the United Kingdom on June 25, 2018
best there is
Raquel13
Reviewed in the United States on August 19, 2017
Strong and long lasting
MichiganMarty
Reviewed in the United States on June 6, 2017
best blades on themarket
カスタマー
Reviewed in Japan on February 26, 2017
切れ味よく、期待以上でした、気持ちよく仕事が進み、御社で購入してよかったです。
Paul Prater
Reviewed in the United Kingdom on April 10, 2016
Awesome. Was pointed at Lenox blades years ago for their robust dealing of 316 stainless. Would not want to use anything else on it.
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