Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life.

Features:
The hole saw upper is made of YG8 cemented carbide particles, Q235 steel pipe, 1.5mm thick, keen cutting.
Strong particle bonding ability, impact resistance, no falling.
The back cover is made of aluminum alloy, which is practical and not easy to crack.
45# steel drill bit, YG8 alloy cutter tip, galvanized surface, not easy to rust.
Suitable for punching holes in ceramic tiles, ceramics and red bricks.

Specifications:
Main material: steel+alloy
Color: red+silver
Cutting diameter: 33-53-67-73-83mm
Shank type: hexagon
Shank diameter: 10mm / 0.4in
Chip flute length: 10mm / 0.4in
Useful length: 55mm / 2.2in
Total length: 135mm / 5.3in
Outer edge apex angle: 45
Max. cutting depth: 83mm / 3.3in
Blade diameter: 10mm / 0.4in
Blade length: 65mm / 2.6in
Package size: 260 * 225 * 50mm / 10.2 * 8.9 * 2.0in
Package weight: 1313g / 2.9lb

Package list:
1 * Grooved Hole Saw Set