Straight Refine by Ball diameter < 1 mm ≥ 1 - ≤ 1.5 mm ≥ 2 - < 3 mm ≥ 3 - < 4 mm ≥ 4 - ≤ 5 mm ≥ 6 mm Effective working length < 11 mm ≥ 11 - ≤ 29 mm ≥ 30 - ≤ 50 mm > 50 mm Probing system Renishaw Zeiss Thread M2 M3 M4 M5 Stem material Steel Ceramic Carbon fibre Tungsten carbide Tip material Ruby Zirconia Silicon nitride Tungsten carbide Diamond 1..<< Previous5960616263 Product Unit price Add to cart M2 Ø1.5 mm silicon nitride ball, stainless steel stem, L 10 mm, EWL 4.5 mmA-5004-1918 $80.00 M2 Ø2.5 mm silicon nitride ball, stainless steel stem, L 10 mm, EWL 6.5 mmA-5004-1920 $80.00 M2 Ø3 mm zirconia ball, stainless steel stem, L 10 mm, EWL 7 mmA-5004-2914 $80.00 1..<< Previous5960616263 Shopping security Recall your cart