1. [WIDE TOOL COMPATIBILITY] This hole saw bit supports use on tabletop drills, hand drills and drills for various drilling tasks. Note that it should not be used on impact drills to avoid compromising performance.
2. [LONG LASTING POWDER TECHNOLOGY] Manufactured with advanced powder production and vacuum sintering, this drill bit is designed to resist wear and provide extended life in harsh drilling conditions.
3. [EXPERIENTLY DESIGNED FOR MATERIALS HEAVY DUTY] Perfect for drilling marble, ceramics, glazed bricks, glass and other stones. Use water to cool the bit while drilling, ensuring clean, precise holes without damage.
4. [SEGMENTED BIT FOR SMOOTH CUTTING] The segmented design significantly reduces cutting resistance and improves chip removal, allowing efficient drilling with less pressure and increased .
5. [TRIANGULAR FOR MAXIMUM GRIP] Featuring universal triangular shank, this bit eliminates slippage and tolerates greater twisting forces

Specification:
Item Type: Hole Saw Drill Bit
Optional Style: 40mm, 45mm, 50mm, 55mm, 60mm
Opener Specifications Product Overall Length Handle Length Handle Diameter Working Depth
40mm/1.6\" 83 mm / 3.3 in. 25 mm / 1 in. 9.4 mm / 0.4 in. 58 mm / 2.3 in.
45 mm / 1.8 in. 83 mm / 3.3 in. 25 mm / 1 in. 9.4 mm / 0.4 in. 58 mm / 2.3 in.
50 mm / 2 in. 84 mm / 3.3 in. 25 mm / 1 in. 9.4 mm / 0.4 in 59 mm / 2.3 in
55 mm / 2.2 in 84 mm / 3.3 in 25 mm / 1 in 9.4 mm / 0.4 in 59 mm / 2.3 in
60 mm / 2.4 in 80 mm / 3.1 in 25 mm / 1 in 9.4 mm / 0.4 in 59mm / 2.3inch

Package List:
1 x Forest Bell Saw

Note:
First position yourself at an oblique angle of 45° and drill the hole vertically (note that the speed should not be too fast and the speed should be operated slowly at about 800-1000 rpm)