Features:
- Set of 3 for jobs of all sizes.
- 2 fluted edges for faster， smoother cutting.
- Hex shank prevent slippage when in chuck.
- Surface treatment: Titanium plating.
- Ideal for using to cut holes in a variety of materials including steel， brass， wood， plastic， etc.
- Material: HSS steel.
- The lengths are separeately 104.5mm ( 15 step )， 74mm ( 9 step )， 67mm ( 5 step ).
- Rotational speed: 600rpm
- The 3 cutters come in the following sizes:
4 - 32mm ( 4mm， 6mm， 8mm， 10mm， 12mm， 14mm， 16mm， 18mm， 20mm， 22mm， 24mm， 26mm， 28mm， 30mm， 32mm ).
4 - 20mm ( 4mm， 6mm， 8mm， 10mm， 12mm， 14mm， 16mm， 18mm， 20mm ).
4 - 12mm ( 4mm， 6mm， 8mm， 10mm， 12mm ). 0.209 Package weight: 0.255 kg
Package Size(L x W x H): 14.60 x 8.50 x 3.00 cm / 5.75 x 3.35 x 1.18 inches Package Contents: 3 x HSS 4241 Hex Shank Step Cone Drill Bit Set Hole Cutter