Wholesale 1/4" Shank Type A-N Rotary Burr Carbide Die Grinder Bits

Material: Tungsten Carbide
Usage: Suitable for machining various kinds of metal material including ≤HRC65 hardened steel
Hardness: HRC50-60/HRA92.5
Application: Widely used for metalwork, tool making, engineering, model engineering, wood carving, jewellery making, welding, chamferring, casting, deburring, grinding, cylinder head porting and sculpting
Advantage: Durable,high hardness and impact toughness,efficient, long lasting.
Certification: ISO9001:2015
Customized support: OEM/ODM
Place Of Origin: Zhuzhou,Hunan,China
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1/4" Shank SA SB SC SD SE SF SG SH SJ SK SL SM SN Single cut  Double cut Types Tungsten Carbide Rotary Burr

Product name

OEM ODM Tungsten Rotary File Carbide Burrs Manufacturers

MaterialTungsten steel Hard Carbide

Shape of cutter

A/B/C/D/E/F/G/H/J/K/L/M/N Type

Cutter pattern

Double cut/Single Cut


HRA 89-92.5 hardness

Head size

3mm / 6mm / 8mm / 10mm / 12mm / 14mm / 16mm ...



Suitable for

Drilling, Metal Craving,Engraving, Polishing

Suitable for materials with relatively low density, such as wooden, plastic and aluminum.

if you need custom size, welcome to inquiry

The carbide burs tools for metal working, are available in three main styles of cut: single groove, double groove and double groove with end cut.

Material: 100% of raw materials.

Tolerance: strict tolerance extent control, which can reach about 0.01mm;

Types: cylindaric, conical, inverted conical, parabolic,ballistic.

Physical performance: Durable,high hardness and impact toughness,efficient, long lasting.



  • ✔️[PREMIUM BURRS DESIGNED] Whether your job implies precision metal work, engineering, tool making, welding, deburring, jewelry making, or you enjoy various DIY arts and crafts or hobbies such as sculpting, KING carbide rotary burrs are exactly what you need for premium results!
  • ✔️[TOP QUALITY MATERIAL]Our rotary tool accessories are made with premium carbide tungsten steel, a highly durable material which is guaranteed to withstand the test of time. With a double cut tooth angle which prevents chipping, this tungsten carbide grinding file is superior to any high speed steel burrs.
  • ✔️[HARD WARING BURRS]Our rotary cutter includes everything you need for cutting, shaping, grinding, polishing and removing sharp edges, being compatible with ferrous and non-ferrous metals, wood, plastic and even stone.
  • 👉[PROFESSIONAL RESULTS]👈 Unlike similar products on the market, these die grinder bits provide a faster cutting time, being suitable for cleaning trimming, veining and weld joint of casting, porting tools, forging and finishing all kinds of metal and non-metal mould.
  • ✔️ [PRACTICAL & EASY TO STORE]Order this rotary grinder burr bit and you’ll receive a great storage box for easy transportation and safe keeping! No more misplacing or losing your deburring bits, keep them accessible and within immediate reach every time you need them! 


Custom size description

  • All the products in stock are metric-sized products. For customers who require inch sizes, please contact us.
  • Non-standard sizes are available to produce as required sizes and drawing.
  • Please contact with us for more details about this product and other shapes of products.
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