5.8x160mm Four-groove Nail-stop Drill and Locking Set (AE158H(P))

Product Features:

• Can drill holes and install and remove screws on cement walls, aluminum doors and windows, corrugated boards and other building materials
• The sleeve adopts a steel ball design to fix the screws without losing the nails. It is stable, safe and durable
• AE158H(P) uses a four-groove, three-edge steel bar drill bit with a tungsten steel head and hard material to maximize drilling speed and wear resistance.
• AE158H uses a four-groove two-edge cement drill bit made in Taiwan
• Easy installation, free conversion, saving time and effort in operation
• The kit includes 2 cement drill bits and 1 sleeve
• Suitable for use with four-groove power-free electric drills

※The four-groove three-blade cement drill bit shown in the above figure can pass through steel bars, while the four-groove two-blade drill bit cannot pass through steel bars

Material:
- Sleeve: Alloy steel
- Drill bit: HSS+tungsten steel 

Product Components:
- 2 four groove three blade drill bits for steel bar and cement 5.8x160mm
- 1 x Casing 120 mm