By referencing this easy-to-use guide, you can

identify the correct product to meet your needs.

CSBM5210125R

52 10 12 5 R

Head DiameterShank DiameterLength/Depth shownLead Angle*Hand of Tool
shown as “D2”shown as “D”as “L1/L4”
MetricMetricBore Length for Step Bars0 = 90°R = Right hand
7 = 6,60mm4 = 4,00mmUsed for

Thread Depth for Threading Bars L = Left hand Threading/

8 = 8,18mm/8,20mm 5 = 5,00mm Overall Length for Straight Grooving Bars

Shank Bars

10 = 9,78mm6 = 6,00mmRight-hand boring bar
13 = 12,70mm/8 = 8,00mm3 = 3°R

12,95mm

45 = 4,57mm10 = 10,00mmMetric5 = 5°
48 = 4,80mm12 = 12,00mm12 = 12,70mm7 = 7°
52 = 5,16mm16 = 16,00mm19 = 19,05mm225 = 22.5˚
53 = 5,30mm22 = 22,23mm30 = 30°
64 = 6,60mm25 = 25,40mm45 = 45°
66 = 6,55mm/6,60mm32 = 31,75mm60 = 60°

82 = 8,15mm 38 = 38,10mm 95 = 9,50mm 48 = 47,63mm

99 = 9,91mm51 = 50,80mmLeft-hand boring bar
159 = 15,88mm63 = 63,50mmL

64 = 64,00mm 76 = 76,00mm 79 = 79,38mm 100 = 100,58mm/ 101,50mm/ 101,60mm 102 = 101,60mm 127 = 127,00mm 152 = 152,00mm 152,40mm 178 = 177,80mm 179,90mm 203 = 203,20mm 254 = 254,00mm

Head Diameter

Shank Diameter

*NOTE: Shown as “KRI” for metric bars. NOTE: Only shown on stepped-style bars.