The Summit 4' x 12" radial arm drill (typically Model RD4312) features a 1.75" drilling capacity in solid steel,
12" column diameter
Spindle Speeds ranging from 30 to 2200 RPM,
8.625" spindle travel,
3 HP spindle motor.
Capacity & Performance
Drilling capacity: 1.75″
Spindle taper: #4 MT
Spindle travel (quill): 8.625″
Speed range: 30-2200 RPM
Spindle feeds: 3 steps (.003″ – 0.0137″ IPR)
Reach & Dimensions
Arm / Radius size: 4-foot arm (43.25″ max distance from spindle axis to column)
Column diameter: 12″
Horizontal head traverse: 29.75″
Overall dimensions (L x W x H): 81″ x 41″ x 93″
Approximate net weight: 5,896 lbs
Motors & Power
Spindle motor: 3 HP
Arm elevating motor: 2 HP
Coolant pump motor: 0.1 HP
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