Union Power Tool Accessories CRV S2 Torx Drive Bits Set T6 T7 T8 T9 T10 T15 T20 T25 T30 T40 Screwdriver Bits with Heat Treatment

Product Description

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Product Description

Drive Size	1/4 inch
Point	T6-40
Length	25mm
Material	Chrome Vanadium Steel
Surface Treatment	Sandblasting, Manganese Phosphate
Type	Hex Drive to Torx
Packaging	Tool Kit, Carton Boxes, Blisters, Sandwich Pack
Application	Manual Screwdriver, Electric Screwdriver
Customization	Acceptable
Brand	Union, OEM
Standard	DIN, ISO
Origin	China

Screwdriver Bits
Screwdriver bits are the interchangeable and removable tips that fit into the holders or chucks of screw-driving tools. They allow one handle or driver to be used with an assortment of bit types and sizes. Common driver bits include slotted, Phillips, Torx, hex, square, and specialty bit tips.
Uses:
Electric drills - Quick changing bits allow an electric drill to drive multiple screw types. Convenient for projects.
Bit drivers - Dedicated bit drivers provide storage for bits and quick changes. Good for repetitive tasks.
Magnetic drivers - Bits snap into magnetic bit holders for a secure hold and easy placement. Helpful in tight spaces.
Ratcheting drivers - Bits can be used with ratcheting drivers for speed and torque control. Useful for automation and assembly.
The variety of screwdriver bits available allows matching the right bit to the job. This ensures proper fit and driving without damage. Organizing bits by type and size provides easy access when needed.
Screwdriver bits deliver versatility, convenience, and productivity to screw-driving tasks. They are indispensable items for household, automotive, and workshop jobs. Investing in quality bits made of durable materials can save time, money, and frustration.

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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