Precisely Polished-Sharp Teeth
The teeth of hole saw are sharp and their angle of inclination is from small to large,which enables you to cut the hole more stably and quickly.

Chip Removal Hole
The long oval hole on the wall of hole saw is used for chip removal so as to improve the working efficiency and extend the life of hole saw.

Spring Loaded Design
The spring on the drill bit is nice because it automatically pushes the disc out of the saw immediately after completing the hole.

Triangle Shank
The triangle shank is non-slip and increase torsion,which enables your equipment to hold hole saw more stably.

Please Note
Hole saw may become overheated and get damaged or even burned up due to fast rotary friction,we suggest customers to use coolant to keep the hole saw cold during usage.
Please remove the spring on the pilot bit when you are drilling a hole on the materials over 10mm thick.
Keep the drill be stable when drilling,otherwise the centre bit may get snapped due to excessive shaking.
Start drilling with a slow drill rotary speed,or the centre bit may be shattered on frist use.
Please make personal protection well before operating hole saw such as wearing protective glasses or face shield.

Size
Size-Cutting Dia:8.5"/216mm ; Shank Diameter:0.4"/10mm ; Cutting Depth:1"/25mm

Package Content
1pcs * Shank
1pcs * Hole Saw
2pcs * Pilot Drill Bit
1pcs * Small L Wrench