7pcs (1/8"-1/2") Multi-Purpose Drill Bits Set in metal box manufacturers and suppliers in China

7pcs (1/8"-1/2") Multi-Purpose Drill Bits Set in metal box

Trade Term: FOB

Payment Terms: L/C, T/T

Place of Origin: Zhejiang, China (Mainland)

Means of Transport: Ocean, Air

Production Capacity: 5000sets per month

Packing: in metal box

Delivery Date: 40 days

Brand Name: SINOLITE

Multi-purpose drill bit: Cobalt and Tungsten Carbide Tip, CV steel shank

Cobalt & Tungsten Carbide Tip
Chrome Vanadium Steel Shank
Professional quality
size of 7pcs: 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"

1) Product: 7pcs inch size Multi-Purpose Drill Bits

1/8"-1/2" by 1/16" increments

size of 7pcs: 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"

2)Picture of multi-purpose drill bits 7pcs/set

3)Drilling instructions

Please follow the speed and technique instructions below

Hardened Steel and Iron 2000—4000 RPM (Lubricant)

Masonry/Concrete 2000—4000 RPM (Percussion)

Stainless Steel 1500—2500 RPM (Coolant)

Glass/Tile/Granite 300—600 RPM

Plastic and Laminates 300—600 RPM

Solid Surface Materials 300—600 RPM

Wood and Composite 500—1000 RPM

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