Hex Shank HSS Electric Screwdriver Drill Bits 1.5~6.5mm for Drilling Wood

• Color: Silver
• Folded: Unfolded
• Certification: RoHS, CE, GS
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: UNT-06
• Material: HSS
• Customized: Customized
• Brand: Metabo, DeWalt, Hitachi, MAKITA, BOSCH
• Length(mm): 47, 53, 59, 60, 83, 87
• Working Length: 16, 20, 26, 32, 36, 50mm
• Surface Treatment: Black Oxide,Ti-Coated,Amber Finished,Bright Finish
• Standard: DIN
• Application: Drilling Steel
• Delivery: Sea Freight, Air, Train, Express
• Transport Package: Cartons+ Pallets
• Specification: 2.0-10.0mm
• Trademark: UN
• Origin: China
• HS Code: 8467991000
• Production Capacity: 25000mpcs/Year

Product Description

Our Advantages

Product Description

 

Hex Size	1/4 inch
Length	47, 53, 59, 60, 83, 87mm
Working Length	16, 20, 26, 32, 36, 50mm
Material	HSS
Surface Treatment	Black Oxide, Ti-Coated, Amber Finished, Bright Finish
Packaging	PVC Pouch, Plastic Tube, Plastic Hanger
Application	Drilling Steel
Customization	Acceptable
Brand	Union
Standard	DIN
Origin	China

Drill Bits

are cutting tools used to create cylindrical holes in materials such as wood, metal, concrete, and masonry. They are an essential tool for construction, manufacturing, DIY projects, and more. They are sold mostly as tool sets.

Drill bits come in sizes ranging from small 1mm bits to large 50mm bits and above. The material, surface treatment coating, and packaging design affect their performance and applications. Understanding drill bit types and using the correct one is key to efficient drilling. Regular maintenance and replacement of worn bits are also important. Overall, drill bits are indispensable tools that provide the openings and holes required in all kinds of DIY, building construction, and machine manufacturing work.

Recommended Cutting Parameter Table for Processing Various Materials Using High-Speed Steel Plate Drills
Material	Cutting speed m/min	Feed rate mm/r	Coolant ml/min
Low-carbon steel	18-25	0.08-0.13	≥40
Medium-carbon steel	15-23	0.08-0.13	≥40
High-carbon steel	13-20	0.07-0.13	≥40
Structural alloy steel	14-22	0.07-0.13	≥40
Tool steel	11-16	0.07-0.13	≥60
Stainless steel	9-15	0.06-0.11	≥200
Aluminium	60-80	0.2-0.25	≥80
Cast iron	20-40	0.1-0.16	No compressed air cooling required
Bronze	21-30	0.12-0.18	No compressed air cooling required
Brass	35-50	0.15-0.21	≥40
Titanium alloy	4-10	0.07-0.13	≥200
Manganese alloy	10-18	0.05-0.1	≥400
Superalloy	8-20	0.05-0.1	≥400

 

Recommended Cutting Parameter Table for Processing Various Materials Using Carbide Steel Plate Drills
Material	Cutting speed m/min	Feed rate mm/r	Coolant ml/min
Low-carbon steel	38-50	0.07-0.12	≥40
Medium-carbon steel	35-45	0.07-0.12	≥40
High-carbon steel	35-45	0.07-0.12	≥40
Structural alloy steel	30-40	0.07-0.13	≥40
Tool steel	25-40	0.07-0.13	≥60
Stainless steel	12-21	0.08-0.12	≥200
Aluminium	80-120	0.15-0.2	≥80
Cast iron	55-75	0,1-0.15	No compressed air cooling required
Bronze	48-60	0.1-0.15	No compressed air cooling required
Brass	30-42	0.1-0.15	≥40
Titanium alloy	6-15	0.1-0.13	≥200
Manganese alloy	15-28	0.07-0.1	≥400
Superalloy	13-24	0.07-0.1	≥400

 

Main Fastener Coating
Types	Application	Spray Test Hours	Characteristics
Mirror Nickel-plating	ALL Metal	72Hours	Stable Excellent polishing performance Improve Wear resistance Wide range of applications
Matt Nickel-plating	ALL Metal	72Hours
Black Nickel-plating	ALL Metal	48Hours	High absorption rate of solar energy Used in solar collector panels.
Manganese Phosphate	ALL Metal	72Hours	Enhanced resistance
Sand Blast	ALL Metal	-	Remove paint, rust, and residue scratches or casting marks
Electrophoresis	ALL Metal	1000Hours	Maintain metallic luster Anti-corrosion properties
Color Electroplating	ALL Metal	96Hours	Improve mental strength Prevent metal oxidation

 

Steel Material  Chemical Composition
Types	C	Si	V	Cr	Mn	Ni	Mo	Characteristic
CR-MO	0.18-0.23	0.15-0.35	-	0.40-0.60	0.90-1.20	-	0.13-0.20	41xx-series SAE steel grades Excellent strength-to-weight ratio Stronger and harder Not easily welded
CRV	0.5	0.3	0.18	0.80-1.10	0.70-0.90	-	-	6000-series SAE steel grades Suitable for hardening Resist abrasion, oxidation, and corrosion Improve material elasticity
S2	0.40-0.55	0.90-1.20	<0.50	-	0.30-0.50	<0.30	0.30-0.60	One of seven types of shock-resisting steels under the AISI Classification High strength High toughness Wear resistance High hardness Resistance to shock loading
45#	0.42-0.05	0.17-0.37	-	≤0.25	0.50-0.80	≤0.25	-	Compared with  A3, it has higher strength and resistance to deformation.
A3	0.95-1.05	0.10-0.50	0.15-0.50	4.75-5.50	0.40-1.00	-	0.90-1.40	High-quality high carbon alloy tool steel

 

Product Application

 

Company Profile

Quality Control

Certifications

FAQ