The total chisel length of the 1/4" bit is 3-21/32” and the useful chisel plunge is 1-13/16”. The total chisel length of the 5/16" bit is 3-7/8" and the useful chisel plunge is 2-1/8”. The total chisel length of the 3/8" bit is 3-7/8" and the useful chisel plunge is 2-3/4”. The total chisel length of the 1/2" bit is 3-7/8" and the useful chisel plunge is 3-5/32". The total chisel length of the 3/4" bit is 5-13/16" and the useful chisel plunge is 5".
Powermatic Premium Mortise Chisel & Bit Set, 4-Pc., Model 17910960

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- Extra long bit for compatibility with different mortisers
- Makes consistently clean cuts with smooth sidewalls
- Ground and hardened carbon steel for efficient performance and long life
- Includes 1/4in., 5/16in., 3/8in., and 1/2in. sizes
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