Hard Jaws

Medium Duty 2 Step Rev

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" "CRITICAL DIMENSION" J DIMENSION L BOLT
HR-6 MTGRJ 6" 2.788 1.969 1 1/2 0.313 0.500 1.500 1.125 0.530 1.060 3/8
HR-8 MTGRJ 8" 3.286 1.969 1 1/2 0.313 0.500 1.750 1.375 0.530 1.060 3/8
HR-8 STGRJ 3.270 1.625 1 0.313 0.500 1.750 1.375 0.375 0.750 3/8
HR-10 MTGRJ 10" 3.920 2.469 1 3/4 0.500 0.750 2.125 1.563 0.650 1.300 1/2
HR-10 STGRJ 3.920 2.469 1 3/4 0.500 0.750 2.125 1.563 0.650 1.300 1/2
HR-12 MTGRJ 12" 4.550 2.469 1 3/4 0.500 0.750 2.500 1.875 0.650 1.300 1/2
HR-12 STGRJ 4.375 2.250 1 1/4 0.500 0.750 2.500 1.875 0.625 1.250 1/2
HR-15 MTGRJ 15" & up 5.350 3.469 2 1/2 0.500 0.750 3.000 2.250 0.950 1.900 5/8
HR-15 STGRJ 15" & up 5.26 2.75 1 1/2 0.500 0.750 3.000 2.250 0.735 1.469 5/8

Heavy Duty 2 Step Rev

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" "CRITICAL DIMENSION" J DIMENSION L BOLT
HR-8 HTGRJ 8" 3.286 1.969 1 1/2 0.313 0.500 1.750 1.375 0.530 0.910 1/2
HR-10 HTGRJ 10" 3.92 2.469 1 3/4 0.500 0.750 2.125 1.563 0.650 1.300 5/8
HR-12 HTGRJ 12" 4.550 2.469 1 3/4 0.500 0.750 2.500 1.875 0.650 1.300 5/8
HR-15 HTGRJ 15"- 24" 5.350 3.469 2 1/2 0.500 0.750 3.000 2.250 0.950 1.900 3/4
HR-18 STGRJ 15"- 24" 5.260 3.469 1 3/4 0.500 0.750 3.000 2.250 0.950 1.900 3/4
HR-24 HTGRJ 24"- 36" 6.942 3.969 3 0.500 0.750 3.000 3.750 1.000 2.000 3/4
HR-28 HTGRJ 24"- 36" 6.942 3.969 3 0.500 0.750 3.000 3.750 1.000 2.000 7/8

WAK 2 Step Rev

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" "CRITICAL DIMENSION" J DIMENSION L BOLT
HR-WAK-200-RJ 8" 2.75 1.565 1.000 0.394 0.787 1.575 1.004 0.395 0.790 8MM
HR-WAK-250/315-RJ 10" 3.79 2.250 1.750 0.472 0.787 1.575 1.813 0.550 1.100 12MM
HR-WAK-400-RJ 16" 4.230 2.500 2.000 0.472 1.022 2.125 1.587 0.687 1.375 12MM
HR-WAK-500/630-RJ 24" 4.760 3.000 2.000 0.708 1.180 2.362 1.780 0.687 1.375 16MM

Heavy Duty Single Step

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" "CRITICAL DIMENSION" J L BOLT
HR-12-HTGRJ-SS 12" 4.55 2.469 2.000 0.5 0.750 2.500 1.875 1.262 5/8
HR-15-HTGRJ-SS 15"- 24" 4.35 3.469 2.500 0.500 0.750 3.000 2.25 1.900 3/4
HR-24-HTGRJ-SS 24"- 36" 6.960 3.750 3.000 0.500 0.750 3.000 3.75 2.000 3/4
HR-28-HTGRJ-SS 24"- 36" 6.960 3.750 3.000 0.500 0.750 3.000 3.750 2.000 7/8
HR-WAK-500/630-RJ-SS 24" 4.760 3.000 2.000 0.708 1.180 2.362 1.780 1.375 16MM

Acme Serrated

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" "CRITICAL DIMENSION" J DIMENSION L BOLT
HR-8LSH-RJ 8" 3 1/2 1.969 1 1/2 0.670 0.601 1.250 1.755 0.530 1.060 1/2
HR-10-ASRJ 10" 4 1/4 2.469 1 3/4 0.750 1.031 1.750 1.705 0.600 1.200 1/2
HR-12-ASRJ 12" 4 7/8 2.469 1 3/4 0.875 1.031 2.000 2.032 0.550 1.100 5/8
HR-15/18-ASRJ 15"- 18" 5 1/2 3.469 2 1/2 1.000 1.531 2.500 2.375 0.950 1.900 3/4
HR-15/18-ASRJ-SS 6 3.500 2 1/2 1.000 1.531 2.500 2.375 1.900 1.900 3/4
HR-21/24-ASRJ 21" and Over 6 1/2 3.469 3.000 1.250 1.531 3.000 2.965 0.950 1.900 7/8

Square Serrated

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" "CRITICAL DIMENSION"
HR-12-SQRJ 12" 4 7/8 2.469 1 3/4 0.750 0.994 1.750
HR-12A-SQRJ 12" A 4 7/8 2.469 1 3/4 0.750 0.994 1.750
HR-15/18-SQRJ 15"- 18" 5 1/2 3.469 2 1/2 1.000 1.488 2.500
HR-21-SQRJ 21" 5 1/2 3.469 2 1/2 1.000 1.488 3.000
HR-21A-SQRJ 21" A 5 1/2 3.469 2 1/2 1.000 1.488 3.000

1.5 MM Double Step

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION"
6K-RJ 6" 3 1.969 1 1/4 0.472 0.787
6B-RJ 6" 3 1.969 1 1/4 0.433 0.969
HR-149-RJ 8" 3 1/2 1.969 1 1/2 0.551 0.984
HR-81-RJ 8" 4 1/4 2.5 1 3/4 0.63 0.984
HR-82-RJ 10" 4 1/4 2.469 1 3/4 0.63 1.181
HR-82-RJ 11" 4 1/4 2.469 1 3/4 0.63 1.181
HR-108-RJ 12" (B-12) 4 7/8 2.469 2 0.71 1.181
HR-112-RJ 12" (B-212) 4 7/8 2.469 2 0.827 1.181
HR-147-RJ 12" Howa-H027M12 4 7/8 2.5 1 3/4 0.827 1.375
HR-155-RJ 15" (B-15) 5 1/2 3.469 2 1/2 0.866 1.69
HR-115-RJ 15" (B-215) 5 1/2 3.469 2 1/2 1.004 1.69

1.5MM Single Step

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" DIMENSION BOLT
HR-6B-RJ-SS 6" 3 1.969 1 1/4 0.433 0.969 1.000 8MM
HR-6K-RJ-SS 6" 3 1.969 1 1/4 0.472 0.787 1.000 10MM
HR-149-RJ-SS 8" 3 1/2 1.969 1 1/2 0.551 0.984 1.030 12MM
HR-82-RJ-SS 10" 4 1/4 2.5 1 3/4 0.630 1.181 1.250 12MM
HR-82-RJ-SS 11" 4 1/4 2.469 1 3/4 0.630 1.181 1.250 12MM
HR-108-RJ-SS 12" (B-12) 4 7/8 2.469 1 3/4 0.710 1.181 1.300 14MM
HR-112-RJ-SS 12" (B-212) 4 7/8 2.469 2 0.827 1.181 1.300 16MM
HR-155-RJ-SS 15" (B-15) 5 1/2 2.469 2 0.866 1.690 1.900 20MM
HR-115-RJ-SS 15" (B-215) 5 1/2 2.5 1 3/4 1.004 1.690 1.900 20MM

3MM Kitagawa

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" DIMENSION L BOLT
HR-113-RJ 10" 4 1/4 2.469 1 3/4 0.630 1.181 0.650 1.300 12MM
HR-143-RJ 12" 4 7/8 2.469 1 3/4 0.710 1.181 0.650 1.300 14MM
HR-203-RJ* 18" 6 1/2 3.469 2 1/2 0.984 1.907 0.950 1.900 20MM
HR-213-RJ 21" - 24" 7 3/8 3.469 2 1/2 0.984 2.362 0.950 1.900 20MM

3MM Matsumoto

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" DIMENSION L BOLT
HR-153-RJ 15"-18" 6 1/2 3.469 2 1/2 0.866 1.969 0.950 1.900 20MM
HR-183-RJ HOWA 6 1/2 3.469 2 1/2 1.022 1.969 0.950 1.900 20MM

3MM Single Step

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" DIMENSION BOLT
HR-203-RJ-SS* 18" 6 1/2 3.469 2 1/2 0.984 1.907 1.900 20MM
HR-153-RJ-SS 15" - 18" 6 1/2 3.469 2 1/2 0.866 1.964 1.900 20MM
HR-213-RJ-SS 21" - 24" 8 1/2 3.469 2 1/2 0.984 2.362 1.900 20MM

1/16" Serrated

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" DIMENSION L BOLT
HR-11-6.5-RJ 6 1/2 3 2 1 1/4 0.551 0.865 3/8 3/4 3/8
HR-11-8-RJ 8" 3 1/2 1.969 1 1/2 0.669 0.945 0.530 1.060 1/2
HR-11-12.5-RJ 10"- 12"L 4 7/8 2.469 1 3/4 0.827 1.181 0.650 1.300 1/2
HR-16-6.5-RJ 6 1/2" 3 2 1 1/4 0.510 0.719 3/8 3/4 5/16
HR-16-8-RJ 8" 3 4/7 2 1 1/2 0.669 0.875 3/8 3/4 3/8
HR-16-10-RJ 10" 4 1/4 2 1/2 1 1/2 0.827 0.98 1/2 1 1/2
HR-6-JSH-RJ 5"- 6" 3 2.000 1 1/4 0.433 0.719 1/2 1 5/16
HR-10-JSH-RJ 8"- 10" 3 1/2 2.000 1 1/2 0.551 0.875 1/2 1 3/8
HR-12-JSH-RJ 11"- 12" 4 1/4 2.469 1 3/4 0.788 1.181 0.650 1.300 1/2
HR-15-JSH-RJ 14"- 15" 4 7/8 2.469 1 3/4 0.827 1.562 0.650 1.300 5/8
HR-18-HD-RJ 18" 6 1/2 2.469 2 1/2 1.181 1.97 0.950 1.900 3/4

3/32" 2 Step & Single Step

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" DIMENSION L BOLT
HR-BB-500-RJ 16" - 20" 5 1/2 3.469 2 1/2 1.004 1.625 0.950 1.900 3/4
HR-BB-500-RJ-SS 5 1/2 3.469 2 1/2 1.004 1.625 1.900 NA 3/4
HR-BB-630-RJ 25" - 31 1/2" 8 1/4 3.969 3 1/2 1.181 2.375 1.000 2 1
HR-BB-630-RJ-SS 8 1/4 3.969 3 1/2 1.181 2.375 2.000 NA 1

3/32" Extended

MANUFACTURER_PART_NUMBER Chuck Size LENGTH HEIGHT WIDTH "CRITICAL DIMENSION" "CRITICAL DIMENSION" J BOLT
HR-BB-400 16" 6 1/4 2 1/2 2 1/2 1.004 1.500 1.936 3/4
HR-BB-500 20" 8 1/2 3 2 1/2 1.004 1.625 3.561 3/4
HR-BB-630 25" 9 3 2 1/2 1.181 2.375 2.604 1 1.750
HR-LVE-630 9 3 2 1/2 1.004 2.375 2.604 20MM 1.750
HR-BB-800 31 1/2" 1 3 1/2 3 1/2 1.181 2.500 4.300 1 3.500
HR-LVE-800 1 3 1/2 3 1/2 1.004 2.500 4.300 20MM 3.500
HR-BB-850/1000 35" - 40" 12 3/4 3 1/2 3 1/2 1.181 2.500 6.500 1 5.000
HR-LVE-850/1000 12 3/4 3 1/2 3 1/2 1.004 2.500 6.500 20MM 5.000