Style 13S for use in R-26 and R-38 boring heads. High speed steel bits that are 2 1/2" long and have a 1/4" shank with a flat side to fit into Ritter and similar boring machines
Stop collars on drill bits or in conjunction with countersinks to regulate the depth of your hole.
Designed for clean cutting and hardened for long life. The plug remains in the board and can be broken out with a screwdriver
This bit has a right hand rotation for face frame boring unit.
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All bits have a 1/4" shank and are 6" long. These bits bore faster and longer than any other flat bit. The microgroove point provides fast starts and give you positive cutting action while the extended spurs scribe the hole. Forged from Irwin’s special grade tool steel.
These bits fit into the European Boring machines for hinges and other flat bottom holes. The carbide tips will give you excep tional cuts in all type of material. All bits have 10mm shanks
High speed steel bits with a 3/8" shank. Give you a clean, accurate, flat bottomed entry and exit hole