1, The unique step structure, a drill can drill a variety of sizes of the aperture.
2, You can deburring, chamfering, punching elliptical hole.
3, Suitable for installation in the pistol drill and bench drill.
4, The hardness of the workpiece below the use of 25 ° below, such as iron, aluminum, PVC board, insulation board, wood.
5，Cutting materials: thin iron plate, aluminum, insulation board, PVC board wood thickness within 5mm.
Material:High-speed steel 4241
Handle: 1/4 Hex Shank (6.35mm)
3 - 12 mm 9 steps （3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm）
4 - 12 mm 5 Steps (4mm,6mm,8mm,10mm,12mm)
4 - 20 mm 9 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm)
4 - 32 mm 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm)
Packing: aluminum case
4x drill bit