Irwin - Step drill bit - 10502853 - 4m - ø 4–22 mm - 51070132

Product description

• Designed for precise drilling in thin materials
• Self-centring tip does not slip and eliminates the need for hammering a centring point
• Chrome vanadium steel drill body is hardened to 56 HRC for long life
• Double ground cutting edge with single chip screw for extra chip capacity, drilling truly round holes and maximum step control
• Suitable for mild steel, copper, brass, aluminium, plexiglass, plastic, wood and laminate
• Flattened shank prevents the drill head from slipping in the chuck
• Laser-etched dimensions in the chip flute for easy and permanent hole size determination