Complaint
| Groove | Hex |
| Head | Quick Change |
| Socket Size | 1/4 inch |
| Diameter | 7mm |
| Length | 80mm |
| 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 |
For drivers, mechanics, and DIYers alike, the drive bit holder is a workshop must-have. This simple contraption holds the tips of screwdriver bits securely, making bit exchange quick and easy. No more fumbling around tiny bits or hunting through a jumbled toolbox to find the right size. The drive bit holder organizes bits for smooth access and maximum convenience.
Good drive bit holders allow effortless bit exchange for use with screwdriver handles or power drills. To use, simply push the bit tip firmly into the appropriate holder hole. An inner magnet will secure it in place. Then insert the rear end of the bit into the driver handle or drill chuck. To switch sizes, pop the bit out of the holder and exchange it for another. This enables switching between Phillips, slotted, Torx, or other tip styles in seconds.
When selecting a drive bit holder, sturdy casing and strong magnets are ideal. A molded rubber grip can allow better handling. Look for holders with hole sizing clearly marked and enough capacity for the needed assortment of bits. Some models even have built-in bit storage in the base or dual sides to accommodate more bits.
| 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 |
