Anndason Air Hammer Bits Kit 5‑Pc (Black Alloy Steel) — Flat & Spherical Heads with Spring

Anndason 5 Pcs Smoothing Pneumatic Air Hammer Bits Kit is a heavy-duty set of alloy-steel chisels and spring designed for air hammers, made to handle tire repair, seam pressing, and general metal and rubber shaping tasks.

This compact kit bundles four purpose-driven hammer bits plus a replacement spring to keep a compatible pneumatic tool working on-site. Crafted from alloy steel and finished in black, the set includes three flat heads and one spherical head across varying lengths so you can match bit profile and reach to the job. It fits common 150mm, 190mm and 250mm air hammers and gas shovels with a handle diameter of approximately 10mm, and is meant for use where an air compressor powers the pneumatic sewing or hammer machine.

What types of jobs is this bit set useful for?

The Anndason kit suits tasks that require controlled impacting and shaping rather than cutting. It’s commonly used for tire repair, press-fitting and seam seating on pipes, edges and metal panels. Because of the included spherical and flat profiles, it adapts to both curved and flat surfaces.

• Tire bead and patch seating
• Wind pipe seam pressing and edge forming
• General panel shaping and rust scale removal
• Light demolition or metal peening where impact profiles vary

How do I know the bits will fit my air hammer?

Compatibility is determined by shank diameter and tool throat size: this kit is designed for tools with an approximate 10mm handle bore and common 150mm–250mm air hammer models. Measure your tool’s chuck or check the manufacturer specs before purchase.

• Shank intended for ~10mm handle diameter
• Fits many 150mm, 190mm, 250mm air hammers and gas shovels
• Works with pneumatic sewing/hammer machines using an air compressor
• Use correct retainer or spring for secure installation

What are the bit sizes and head shapes included?

The set contains four alloy-steel bits in varied lengths to give you reach and control across different tasks. Three bits have flat heads for broad impact and surface work; one has a spherical head for shaping curved areas and concentrated peening.

• Lengths: 180mm, 100mm, 83mm, 83mm
• Heads: 3 flat, 1 spherical
• Material: alloy steel with black finish for wear resistance
• Includes one replacement spring for the bit retainer

How should I install and maintain these hammer bits?

Always disconnect the air compressor before changing bits. Insert the shank into the tool’s retainer, secure with the spring or retainer clip, and test at low pressure until the bit is seated correctly. Clean and lightly oil shanks after use to minimize corrosion and inspect bits for wear or deformation before each session.

• Disconnect air supply before changing bits
• Use the supplied spring or compatible retainer to lock bits
• Test at low pressure after installation
• Wipe clean and oil shanks to extend service life

Who is this for: The Anndason 5-piece kit is aimed at mechanics, tire technicians, metalworkers and DIYers who use pneumatic hammers and need a small, versatile selection of impact profiles for repair, shaping and seam work. It’s a practical add-on for workshops, mobile repair vans, and hobbyists who require durable bits that fit common air-hammer tools. If your workflow involves frequent impact seating, pipe or panel shaping, or you need a compact replacement set with a spare spring, this kit covers those basics without taking up much space.