30-120MM Adjustable Circle Hole Wood Drywall Drill Bit Round Black

Features:
1. Wide range of uses, the hole diameter size can be adjustable.
2. Alloy , smooth cut, the hole wall is smooth and seedless, good effect of.
3. Roundness right, opening hole depth 30mm.

Specifications:
Material: steel body and alloy heads
Adjustable range: 30-300mm
hole diameter: 30-120mm, 30-200mm, 30-300mm
Depth of cut: 30mm
Diameter of the rod: 10mm (suitable for 10mm diameter electric drill)
Suitable for drill: plywood, laminates, composites, gypsum, rubber, plastic, hardwood, etc.

Package Included:
1 x Alloy hole opener

How to use:
1. two reach the central drilling distance are equal, can open the hole.
2. two reach the central distance of the drill are not equal, can get rings and concentric circles.
3. Before drilling to check if the is fixed and the adjustable diameter bolts tightened to prevent accidents
4. When the is not sharp, please grind the and use it.

Note:
1. It can not be used to drill metal or !
2. Need to be used with a hand drill or a bench drill Features: 1. Wide range of uses, the hole diameter size can be adjustable. 2. Alloy , smooth cut, the hole wall is smooth and seedless, good effect of. 3. Roundness right, opening hole depth 30mm. Specifications: Material: steel body and alloy heads Adjustable range: 30-300mm hole diameter:30-120mm, 30-200mm, 30-300mm Depth of cut: 30mm Diameter of the rod: 10mm (suitable for 10mm diameter electric drill) Suitable for drill: plywood, laminates, composites, gypsum, rubber, plastic, hardwood, etc. Package Included: 1 x Alloy hole opener How to use: 1. two reach the central drilling distance are equal, can open the hole. 2. two reach the central distance of the drill are not equal, can get rings and concentric circles. 3. Before drilling to check if the is fixed and the adjustable diameter bolts tightened to prevent accidents 4. When the is not sharp, please grind the and use it. Note: 1. It can not be used to drill metal or ! 2. Need to be used with a hand drill or a bench drill














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