MARS SUPPLY

10/32 A191 STEP DRILL

TRTO01-905-060 MFG #: 01-905-060
$21.90 / EA
  • Cutting Direction: Right Hand
  • Material: HSS
  • Overall Length: 4 in
  • Series: A191
  • Type: Standard Straight Shank
  • Body Diameter: 1/4 in
  • Pilot Hole Diameter: 0.161 in
  • Pilot Length: 5/8 in
  • Screw Size: #10-32
  • Screw Type: Socket Head Cap
QTY
  • Application
  • Item Features
For drilling mounting holes for socket head cap screws
  • Drills 45 deg chamfered holes to be tapped to produce approximate 70% thread
  • The dual cutting diameters produce holes properly sized for each size screw
  • The through hole style produces holes with a body diameter slightly larger than the major diameter of the screw
  • The tapped hole type drills holes with the diameter needed for tapping the holes to approximately 70% thread
  • Both types also produce a counterbored area correctly sized for the screw head
  • Suitable for a range of ferrous and non-ferrous metals and alloys and non-metallic materials
  • The cutting lengths are sufficient to permit repeated sharpenings
  • Cuts both body and counterbore diameters in a single pass
  • Straight shanks that corresponds to the drill diameter
  • Ground from the solid
  • Cylindrically ground
  • Permits repeated sharpenings