® Tiny Tools HK Broaching Tools for Hexagon Keys Product Identification - Ordering Codes HK 3 S30 L5 BMK Hexagon Socket Size Grade Keys S12 = 1.2 - 1.6 mm S16 = 1.6 - 2.3 mm Maximum Min. Bore Dia. S23 = 2.3 - 2.9 mm Cutting depth S30 = 3.0 - 4.0 mm L2= 2.3 - 2.5 mm 1 = 1.2 - 1.6 mm S40 = 4.0 - 5.0 mm 2 = 2.2 mm L4 = 4.0 mm S50 = 5.0 - 8.0 mm L5 = 5.5 mm 3 = 2.9 mm 4 = 3.9 mm L6 = 6.5 mm 5 = 4.9 mm L9 = 9.5 mm Demonstration Grade P M K N S H BMK      Min. D S Ordering Code L L1 R F Holder Dia. 1.2-1.6 HK 1 S12 L2 51 2.3 0.05 0.10 1.2 4.0 SIM…H4 1.6-2.3 HK 1 S16 L2 51 2.5 0.05 0.10 1.6 2.3-2.9 HK 2 S23 L4 51 4.0 0.05 1.35 2.2 5.0 3.0-4.0 HK 3 S30 L5 51 5.5 0.05 1.35 2.9 SIM…H5 4.0-5.0 HK 4 S40 L6 51 6.5 0.10 1.35 3.9 7.0 5.0-8.0 HK 5 S50 L9 62 9.5 0.10 1.35 4.9 SIM…H7 S = Socket Size First choice Alternative Order example: HK 1 S12 L2 BMK For additional holders see page A06-32 to 41 A06-31