Impact Duty 1/4 Inch Drive Quick Release Extenstion Drill Bit Holders

Product Description

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Product Description

 

Groove	Hex
Head	Quick Change
Socket Size	1/4 inch
Diameter	7mm
Length	55, 60, 75, 100, 150
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 Holders

For drivers, mechanics, and DIYers alike, the 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

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