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Hardness Testing Indenters

Hardness tests can be defined as forcing an indenter of a specified size, shape, and material into the surface of a test piece to obtain a hardness value. The resulting indent is measured by either the depth of penetration or the dimensions of the resulting indentation. Hardness testing plays a vital role in materials testing, quality control, and component acceptance. Buehler provides a complete range of indenters designed for Vickers, Knoop, Rockwell, and Brinell scales. Explore the product groups below for more information.

Indenter Ordering Information

Vickers and Knoop Indenters

Part Number Type Description Request a Quote
W3100G01 Penetrator Support Fixed mounting indenter bracket. Request a Quote
W3100G02 Penetrator Support Allows the VH3100 indenter to be changed quickly and repeatably. Contact your sales representative to find out if the SnapGrip holder is suitable for your application. Request a Quote
W9100687 Vickers Indenter ISO and ASTM certified Vickers indenter for use with VH3000, VH1102, VH1202 and VH1150 series. Request a Quote
W9100684 Knoop Indenter ISO and ASTM certified Knoop indenter, for use with VH3000 and VH1202 series. Request a Quote

Rockwell Indenters

Rockwell indenters fit on R574, RH2150, RB2000, and Wilson legacy testers.

*C, D, and A scales refer to regular Rockwell scales, N scales refer to superficial Rockwell scales.

** WC = tungsten carbide

Rockwell Verification Kits
Kits include recommended indenter and blocks for the dedicated scales

Part Number Type Description Request a Quote
9100401 Diamond Indenter Rockwell indenter C scale , 120° diamond cone. Request a Quote
9100402 Diamond Indenter Rockwell indenter C, D, A, N scales, 120° diamond cone. Request a Quote
9100431 Rockwell Indenter Rockwell indenter C, A, D scales, 120° diamond cone. Request a Quote
9100432 Rockwell Indenter Rockwell indenter N scales, 120° diamond cone. Request a Quote
9100434 Rockwell Indenter Rockwell indenter C,A,D,N scales, 120° diamond cone. Request a Quote
900003405 Rockwell Indenter Rockwell indenter A scale for Carbides, 120° diamond cone. Request a Quote
900002015 Diamond Indenter Rockwell indenter N scale, 120° diamond cone. Request a Quote
9100405 Carbide Ball Indenter Rockwell indenter 1/16" WC ball with 4 spare balls. Request a Quote
9100406 Carbide Ball Indenter Rockwell indenter 1/8" WC ball with 4 spare balls. Request a Quote
9100407 Carbide Ball Indenter Rockwell indenter 1/4“ WC ball with 1 spare ball. Request a Quote
9100408 Carbide Ball Indenter Rockwell indenter 1/2“ WC ball with 1 spare ball. Request a Quote
9100422 Carbide Balls 1/16“ Diameter WC Balls, 5 pcs. Request a Quote
9100423 Carbide Balls 1/8“ Diameter WC Balls, 5 pcs. Request a Quote
9100424 Carbide Balls 1/4“ Diameter WC Balls, 3 pcs. Request a Quote
9100425 Carbide Balls 1/2“ Diameter WC Ball, 1 pcs. Request a Quote
W2100B2 Brinell Indenter Brinell indenter 2.5mm WC ball. Request a Quote
W2100B5 Brinell Indenter Brinell indenter 5mm WC ball. Request a Quote
A582143 Accessory kit for Rockwell Regular scales Rockwell Regular Kit – includes Rockwell C Indenter, 25 HRC, 63 HRC and 80 HRB test blocks. Request a Quote
A58239 Rockwell Superficial Scale Accessory Kit Rockwell Superficial Kit – includes Rockwell N Indenter, 46 HR30N, 80 HR30N and 70 HR30T test blocks. Request a Quote
A582144 Rockwell Twin Scale Accessory Kit Rockwell Twin Kit – includes Rockwell C and N Indenters, 25 HRC, 63 HRC, 80 HRB, 80 HR30N and 70 HR30T test blocks. Request a Quote

Brinell Indenters

Includes indenter carbide ball with certificate.

*Indenters certified for use for VH3000 Series hardness testers.

**Products only available in North America & South America

Part Number Type Description Request a Quote
9110123 Carbide Ball Indenter Indenter 10mm Carbide Ball with certificate. Request a Quote
9110122 Carbide Ball Indenter Indenter 5mm Carbide Ball with certificate. Request a Quote
9110121 Carbide Ball Indenter Indenter 2.5mm Carbide Ball with certificate. Request a Quote
900000485 Carbide Ball 10mm Carbide Ball with NVLAP certificate (Qty 2)** Request a Quote
900000595 Carbide Ball 5mm Carbide Ball with NVLAP certificate (Qty 2)** Request a Quote
900007350 Retainer 10mm Ball Retainer, MJ, L, K, KDR, AP, & CLB3** Request a Quote
W741237 Brinell Indenter 1mm Brinell ball indenter* Request a Quote
W741238 Brinell Indenter 2.5mm Brinell ball indenter* Request a Quote

Universal Indenters

UH4000 series testers allow for indenter options in Vickers, Knoop, Rockwell, and Brinell scales. Item numbers include turret adapters when applicable.
Part Number Type Description Request a Quote
W4100K Universal Indenter Knoop Indenter with turret adapter. Request a Quote
W4100V Universal Indenter Vickers Indenter with turret adapter. Request a Quote
W4100B1 Universal Indenter Brinell Indenter 1mm with turret adapter. Request a Quote
W4100B2 Universal Indenter Brinell Indenter 2.5mm with turret adapter. Request a Quote
W4100B5 Universal Indenter Brinell Indenter 5mm with turret adapter. Request a Quote
W4100B10 Universal Indenter Brinell Indenter 10mm with turret adapter. Request a Quote
W4100R120 Universal Indenter Rockwell Diamond Cone Indenter. Request a Quote
W4100R16 Universal Indenter Rockwell Indenter 1/16” Ball. Request a Quote
W4100R8 Universal Indenter Rockwell Indenter 1/8” Ball. Request a Quote
W4100R4 Universal Indenter Rockwell Indenter 1/4” Ball. Request a Quote
W4100R2 Universal Indenter Rockwell Indenter 1/2” Ball. Request a Quote

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