Extendable Straight Hex Shank Drill Extension Bars
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Product Highlights
- Full Customization Options: Offers full, minor, and flexible customization including designs and samples.
- Diverse Material Selection: Available in Aluminum, Stainless Steel, CRV, S2, and 45# steel for various needs.
- Multiple Surface Treatments: Options include Blackening, Chrome Plating, Manganese Phosphate, and Sandblast.
- Wide Length Range: Lengths available from 80mm to 150mm to suit different extension requirements.
- Standard Compliance: Manufactured to meet DIN, ASME, and JIS international standards.
- RoHS and GS Certified: Products comply with RoHS and GS safety and environmental regulations.
- Versatile Application: Ideal for power tool drills, bit connections, and hard-to-access areas.
- Flexible Delivery Methods: Supports Sea Freight, Air, Train, and Express shipping options.
Product Attributes
- Customization
- Available
- Color
- Silver
- Folded
- Unfolded
- Model NO.
- UNT-02
- Certification
- RoHS, GS
- Material
- Stainless Steel
- Customized
- Customized
- Brand
- Metabo, DeWalt, Hitachi, MAKITA
- Length(mm)
- 80 to 120, 120 to 150
- Diameter(mm)
- 7
- Surface Treatment
- Blackening/Chrome Plating/Manganese Phosphate/Sand
- Standard
- DIN, ASME, JIS
- Application
- Power Tool Drill/Bit Connection
- Delivery
- Sea Freight, Air, Train, Express
- Transport Package
- Cartons+ Pallets
- Specification
- 1/4 inch
- Trademark
- UN
- Origin
- China
- HS Code
- 8467991000
Product Images of Extendable Straight Hex Shank Drill Extension Bars
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Extendable Straight Hex Shank Drill Extension Bars -
Extendable Straight Hex Shank Drill Extension Bars -
Extendable Straight Hex Shank Drill Extension Bars -
Extendable Straight Hex Shank Drill Extension Bars -
Extendable Straight Hex Shank Drill Extension Bars -
Extendable Straight Hex Shank Drill Extension Bars -
Extendable Straight Hex Shank Drill Extension Bars
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Product Description
| Groove | Hex Socket |
| Socket Size | 1/4 inch |
| Diameter | 7mm |
| Length | 80mm to 120mm, 120mm to 150mm |
| Material | Aluminum, Stainless Steel, CRV, S2 |
| Surface Treatment | Blackening oxide/Chrome plating/Manganese phosphate/Sandblast |
| Packaging | Plastic bags, Blister, Sandwich, Tags |
| Customization | Acceptable |
| Brand | Union |
| Standard | DIN, ASME, JIS |
| Origin | China |
Bit extension bars are a must-have accessory for any toolkit. These simple tools allow you to extend the reach of your drill so you can drill holes in hard-to-access areas.
Bit extension bars are metal rods that attach between your drill chuck and drill bit. They come in varying lengths, usually between 3 inches and 18 inches long. The most common sizes are 6 inches, 12 inches, and 18 inches.
Extension bars are made from durable chrome vanadium steel or carbon steel. They have a male hex shank on one end that fits into your drill chuck, and a female hex socket on the other end to fit your drill bit. Some extension bars have male and female hex ends so you can connect multiple bars together for even longer reach.
When using a bit extension bar, it's important to apply firm pressure and drill straight. The longer the extension, the more chance it has of bending or whipping around if you apply force at an angle. Start drilling slowly and adjust your pressure as needed.
Extension bars are useful for drilling holes in ceilings, floors, decks, cabinets, and any other hard-to-access area. They allow you to avoid using a ladder to get your drill into tight spaces. Many auto mechanics use extension bars to reach engine parts without removing the entire engine.
| 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 |
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR2432432". Items marked "
" are certified.
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Company Profile
Established in the early 2000s, Union Hardware began as a manufacturer and distributor of fasteners and hardware tools. In 2023, we officially consolidated into a globally focused professional hardware exporter. Our expansive product range includes photovoltaic fasteners, stainless steel fasteners, highly corrosion-resistant carbon steel fasteners, and a wide selection of hand tools (Mechanic Tools, Fastening Tools, Measuring Tools, Storage Tools, Tool Sets, PTA Kits, etc. ). Our hardware solutions are trusted across the construction, machinery, automotive, and DIY sectors. With decades of expertise producing durable, reliable products, over 85% of our goods are exported internationally.
Strategically located in Hangzhou Xiaoshan Industrial Zone, we are part of a vibrant manufacturing hub that promotes clustering effects and supply chain efficiency. Our modern facilities and proximity to Shanghai Port allow for seamless production, inventory management, and timely delivery to global markets. Leveraging our hard-won reputation for integrity, dependability, and unparalleled quality, Union Hardware continues pioneering hardware distribution. We remain committed to delivering ideal products, services, and solutions at competitive costs for trade specialists and DIYers worldwide.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- Room 401-1, No.58, Xiangshan Road, Wenyan Street, Xiaoshan, Hangzhou, Zhejiang, China
-
Plant Area
- 100 square meters
-
Number of Employees
- 4
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays, one month, 1-3 months
Off Season Lead Time: within 15 workdays, one month, 1-3 months -
Nearest Port
- Shanghai Port, Ningbo Port
-
Minimum Order Quantity
- 1000 pcs
-
Supply Chain Partners
- 56
Our Production Capability & Technical Expertise
-
Main Products
- Bit Holders, Bits, Sockets, Torque Wrench, Ratchet, Hex Keys, Tool Set, Pta Sets, Bi-Metal Screws, Stainless Steel Fasteners
-
Customization Options
- Full Customization, Minor Customization, Flexible customization, Customization from Designs, Customization from Samples
-
ODM Service Available
- Yes
-
R&D Engineers
- 1 people
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2023-08-03
-
Export Year
- 1 year
-
Main Markets
- Europe, Africa, Domestic
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 2
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What customization options are available?
- We offer full customization, minor customization, flexible customization, and customization from designs or samples.
- What materials are used for the extension bars?
- The bars are made from Aluminum, Stainless Steel, CRV, S2, and 45# steel.
- What is the minimum order quantity?
- The minimum order quantity is 1000 pieces.
- What are the available surface treatments?
- Surface treatments include Blackening, Chrome Plating, Manganese Phosphate, and Sandblast.
- What are the lead times for delivery?
- Peak season lead time is within 15 workdays to 3 months, and off-season is within 15 workdays to 3 months.
- What payment terms do you accept?
- We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.
- Which standards do the products comply with?
- Our products comply with DIN, ASME, and JIS standards.
- What certifications do the products have?
- The products are certified with RoHS and GS.
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