A workshop essentials set promises a robust range of impact-rated spline bits for heavy repairs, Blue Spot Tools 1/2 Impact Spline Bits. Gain confidence when tackling corroded or rounded spline fasteners, with sizes that cover common workshop needs. Are the toughness and impact compatibility necessary for occasional DIYers?
⚡ At a Glance
- • Durability: S2 steel construction, heat treated for extended life
- • Best for: Professional mechanics and DIYers working on automotive and machinery repairs
- • Not ideal for: Delicate electronics or precision screws that require smaller, specialised drivers
Manufactured from resilient S2 steel that has been hardened and tempered. The set covers nine spline sizes from M6 to M18 on a 1/2 inch drive.
Reduced fastener rounding, with S2 steel construction
S2 steel undergoes hardening and tempering processes to increase toughness and resistance to deformation under torque. Heat treatment refines the steel microstructure, improving impact resilience during repeated use.
Less chance of stripping or rounding spline heads, so fasteners are removed cleanly and bits last longer. Reliable performance during high-torque tasks common in automotive work.
Broad size coverage, with M6 to M18 assortment
Nine spline sizes are included, spanning M6 through M18, arranged on a 1/2 inch drive for common workshop tool compatibility. The range reduces the need to swap kits mid-job.
Save time by having the right spline size to hand for most repairs. Fewer interruptions and fewer trips back to the toolbox during jobs.
Suitable for impact use, with compatible drive and construction
Design allows use with ratchets, breaker bars and air tools, supported by the hardened S2 steel and tempering process that increase fatigue resistance. The 1/2 inch drive accepts standard impact sockets and accessories.
Handles heavy-duty tasks such as suspension or transmission work without failing under repeated impacts. Ideal for workshop or roadside repairs requiring high torque.
✨ The 4 Key Reasons for Blue Spot Tools 1/2 Impact Spline Bits
- Nine spline sizes M6–M18 - Covers most automotive and industrial spline fasteners, reducing downtime
- 1/2 inch drive compatibility - Works with standard high-torque ratchets and breaker bars for robust leverage
- Safe for air tools - Compatible with pneumatic impact wrenches for faster removal of stubborn fasteners
- Compact 9-piece assortment - Keeps common sizes organised and ready, saving time during repairs
📋 Technical Details at a Glance
- Category: Home Improvement
- Brand: Blue Spot Tools
- Material: S2 steel
- Heat treatment: Hardened and tempered
- Drive size: 1/2 inch
❓ Frequently Asked Questions
Q: Are these bits suitable for use with impact wrenches?
A: Yes, the set can be used with ratchets, breaker bars and air tools, supporting impact-style use.
Q: What sizes are included in the set?
A: Nine spline sizes are included, covering M6 through M18 on a 1/2 inch drive.
Q: What material are the bits made from?
A: Manufactured from resilient S2 steel that has been hardened and tempered to improve strength and durability.
🏆 Our Verdict
The set is well suited to professional mechanics and serious DIYers who need durable spline bits for automotive and machinery repairs. Resilient S2 steel combined with heat treatment and a full M6–M18 range delivers long-term reliability and reduced fastener damage. While the initial outlay may be higher than basic kits, long-term value comes from fewer replacements and less time lost to rounded fasteners.
