A drill bit fits in the center of the hollow chisel and removes the bulk of the material while the chisel squares out the corners. It offers a large 4-inch hold-down capacity for thick workpieces and 2-3/4-inch width capacity. Fits Delta model 11-980, 11-990, 14-070 and 17-900 drill presses, 11-090 radial drill press, and Sears model 21313, 21315 and 21317 drill presses. Includes mortising attachment and instruction manual--chisel and bit sets sold separately.
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Delta 17-935 Features:
- Converts drill press into accurate mortising machine
- Includes chisel holder, base, fence, and hold down bracket required to convert a drill press for mortising
- Allows the drilling of square and rectangular holes (mortises) for creating strong woodworking joints
- Requires the purchase of chisel and bits sets models 17-908, 17-909, 17-910, or 17-911