(22x370mm) Diamond Drill Bits for Brick Concrete 30x370mm

(22x370mm) Diamond Drill Bits for Brick Concrete 30x370mm Description

1、With seamless steel pipe design, has a longer life, can be well balanced in use, and is not easy to deform 2、The seamless steel pipe sintered with high‑quality diamond powder is more tough and durable 3、Simple to use and easy to replace, it can meet your needs and ensure your operating efficiency 4、Equipped with concentric shafts, drilling faster, and the drill bit does not deviate from the center during work 5、Compatible with a variety of equipment, suitable for hand‑held drilling rigs/bench‑type drilling rigs
Item Type: Diamond Drill Bits
Wall Thickness: Approx. 4mm/0.15in
Drill Body: 45# Seamless Steel Pipe
Knife Tooth: Flat Tooth
Diameter: Approx. Φ18mm/0.70in, Φ20mm/0.78in, Φ22mm/0.86in, Φ25mm/0.98in, Φ27mm/1.06in, Φ30mm/1.18in
Length: Approx. 370mm/14.6in
Tooth Characteristics: Top Flat Tooth
Early Use: Drilling and Sharpening Speed
Later Period of Use: After Using for a Period of Time, the Speed Drops
Scope of Application: Multi-story Residential Brick-concrete Structures, Engineering Subways, Bridges, Expressways
1 x Diamond Drill Bits