Wholesale Made in China Drill Bit Sharpening Machines for Paper

• Customization: Available
• Customized: Non-Customized
• Length: 65-85mm
• Model NO.: Drill bit sharpening machines
• Type: Core Drill Bit
• Material: High Speed Steel
• Usage: Paper Drilling
• Diameter: 3-8mm
• Drill Diameter: 11mm
• Transport Package: 1PCS/Little Box
• Specification: Straigt head drill, Oblique head drill
• Trademark: BNT
• Origin: Shanghai
• Production Capacity: 5000 Piece/Pieces Per Week

Product Description

Paper Drill Bits, Paper Drills, Hollow Paper Drills, Drill Bits:
 
 
1. Features:
 
1). special alloy materials, with a sharp edge of diamonds
2). strongly corrosion resistance and durable
3). accurate coaxial operation, easy to handle
4). smoth drilling
 
2. Specifications for your reference:
 

Item No.	Inner Diameter(mm)	Hole Depth (mm)	Overall Length(mm)	Drilling Dia (mm)
1	3-3.5	30	65	11
2	4.0-4.5	40	75	11
3	5.0-6.0	50	85	11
4	6.5-8.0	50	85	11