Material: HSS
Applicable material: wood/plastic/soft metal/iron
Applicable sheet thickness: ≤5mm; Iron ≤3mm
Not applicable material: glass/tile/stainless steel
Applicable equipment: hand drill/lithium drill/bench drill
Note: 1. Attention to users of lithium electric drills: 12V rechargeable drills have insufficient torque, so it is not recommended to use them. It is recommended to use 36V and 48V lithium electric drills.
2. Attention to users of electric hand drills: the larger the hole diameter, the lower the speed of the electric drill, and the recommended speed is within 1000RPM.

1 Drill=15 Drills:This set includes three standard SAE step drill bits that replace 15 individual drill bits allowing for you to spend more time working, than swapping out drill bits.
Drilling and Chamfer and Deburr:Drill holes in materials such as wood/plastic/soft metal/iron with only a small amount of pressure, and chamfer and deburr while drilling.

Function: Drilling and slotting, the sharp serrated band design can continue to drill horizontally after drilling.
Sawing method: Since the electric drill rotates clockwise, please perform sawing and cutting against the direction of electric drill rotation during operation
Grinding treatment: After the sawing is completed, there will be burrs on the edge. It is recommended to use assorted files and sandpaper for grinding. If you need to further polish to a mirror effect, please choose 5000-7000 mesh sandpaper for fine grinding

Applicable material: wood/plastic/soft metal/iron
Applicable sheet thickness: ≤5mm; Iron ≤3mm

Not Applicable Material

Not applicable material: glass/tile/stainless steel
Not applicable：sheet thickness: ≥6mm; Iron ≥4mm

Step drill bit and serrated drill combo pack applicable equipment:bench drill/electric drill/lithium electric drill
Note: 1. Attention to users of lithium electric drills: 12V rechargeable drills have insufficient torque, so it is not recommended to use them. It is recommended to use 36V and 48V lithium electric drills.
2. Attention to users of electric hand drills: the larger the hole diameter, the lower the speed of the electric drill, and the recommended speed is within 1000RPM.

Drill bit drill set stepped Step FivePears Bit Set,Material: HSS,For Soft Metal/Thin Iron Sheet/Wood/Plastic,Stepped For Metal