Outperform and outlast traditional standard pitch models. Bi-metal construction with teeth made from specially hardened type M3 high speed steel. The varying teeth height and gullet sizes result in much faster cutting and longer life. For wood; mild, tool and stainless steels; cast iron; brass and aluminum. 51 sizes from 9/16” (14mm) to 6” (152mm).
Features
- Depth of cut: 1-1/2 (38 mm)
- Bi-metal construction
- M 3 HSS Cutting edge
- 3/5 TPI Variable pitch
- Positive tooth rake
- NOTE: Use RIDGID Thread Cutting Oil on all metal except cast iron.
Catalog Number | Model No. | Size | Steel RPMs | S/Steel RPMs | Cast Iron RPMs | Brass RPMs | Aluminum RPMs | Tap Drill Nominal Pipe Size | Body Drill Nominal Pipe Size | |||
in. | mm | in. | mm | in. | mm | |||||||
52755 | M14 | 9/16 | – | 580 | 300 | 400 | 790 | 900 | – | – | – | – |
52760 | M16 | – | – | 550 | 275 | 365 | 730 | 825 | – | – | – | – |
52765 | M17 | – | – | 500 | 250 | 330 | 665 | 750 | – | – | – | – |
52770 | M19 | – | – | 460 | 230 | 300 | 600 | 690 | – | – | 3/8 | – |
52775 | M21 | 13/16 | 21 | 390 | 195 | 260 | 520 | 585 | – | – | – | – |
52780 | M22 | – | – | 370 | 185 | 245 | 495 | 555 | 3/4 | – | 1/2 | – |
52785 | M24 | – | – | 350 | 175 | 235 | 470 | 525 | – | – | – | – |
52790 | M25 | – | – | 325 | 160 | 215 | 435 | 480 | – | – | – | – |
52795 | M27 | – | – | 310 | 155 | 210 | 420 | 465 | – | – | – | – |
52800 | M29 | – | – | 300 | 150 | 200 | 400 | 450 | 1 | – | 3/4 | – |
52805 | M30 | 1 4/43 | – | 285 | 145 | 190 | 280 | 425 | – | – | – | – |
52810 | M32 | 1 1/4 | 32 | 275 | 140 | 180 | 360 | 410 | – | – | 1 1/4 | – |
52815 | M33 | – | – | 260 | 135 | 175 | 345 | 390 | – | – | – | – |
52820 | M35 | – | – | 250 | 125 | 165 | 330 | 375 | – | – | 1 | – |
52825 | M37 | – | – | 240 | 120 | 160 | 315 | 360 | – | – | – | – |
52830 | M38 | – | – | 230 | 115 | 150 | 300 | 345 | 1 1/4 | – | – | – |
52835 | M40 | – | – | 220 | 110 | 145 | 290 | 330 | – | – | – | – |
52840 | M41 | – | – | 210 | 105 | 140 | 280 | 315 | – | – | – | – |
52845 | M43 | – | – | 205 | 100 | 135 | 270 | 305 | – | – | – | – |
52850 | M44 | 1 3/4 | – | 195 | 95 | 130 | 260 | 295 | 1 1/2 | – | 1 1/4 | – |
52855 | M46 | 1 13/16 | – | 190 | 95 | 125 | 250 | 285 | – | – | – | – |
52860 | M48 | 1 7/8 | – | 180 | 90 | 120 | 240 | 270 | – | – | – | – |
52865 | M51 | 2 | – | 170 | 85 | 115 | 230 | 255 | – | – | 1 1/2 | – |
52870 | M52 | 2 1/16 | – | 165 | 80 | 110 | 220 | 245 | – | – | – | – |
52875 | M54 | 2 1/8 | – | 160 | 80 | 105 | 210 | 240 | – | – | – | – |
52880 | M57 | 2 1/4 | – | 150 | 75 | 100 | 200 | 225 | 2 | – | – | – |
52885 | M59 | 2 5/16 | – | 145 | 75 | 100 | 195 | 225 | – | – | – | – |
52890 | M60 | 2 3/8 | – | 140 | 70 | 95 | 190 | 220 | – | – | – | – |
52895 | M64 | 2 1/2 | – | 135 | 65 | 90 | 180 | 205 | – | – | 2 | – |
52900 | M65 | 2 9/16 | – | 130 | 65 | 85 | 175 | 200 | – | – | – | – |
52905 | M67 | 2 5/8 | – | 130 | 65 | 85 | 175 | 200 | – | – | – | – |
52910 | M70 | 2 3/4 | – | 125 | 60 | 80 | 160 | 185 | – | – | – | – |
52915 | M73 | 2 7/8 | – | 120 | 60 | 80 | 160 | 180 | – | – | – | – |
52920 | M76 | 3 | – | 115 | 55 | 75 | 150 | 170 | – | – | 2 1/2 | – |
52925 | M79 | 3 1/8 | – | 110 | 55 | 70 | 140 | 165 | – | – | – | – |
52930 | M83 | 3 1/4 | – | 105 | 50 | 70 | 140 | 155 | 3 | – | – | – |
52935 | M86 | 3 3/8 | – | 100 | 50 | 70 | 130 | 150 | – | – | – | – |
52940 | M89 | 3 1/2 | – | 95 | 45 | 65 | 130 | 145 | – | – | – | – |
52945 | M92 | 3 5/8 | – | 95 | 45 | 60 | 120 | 140 | – | – | 3 | – |
52950 | M95 | 3 3/4 | – | 90 | 45 | 60 | 120 | 135 | 3 1/2 | – | – | – |
52955 | M98 | 3 7/8 | – | 90 | 45 | 60 | 120 | 135 | – | – | – | – |
52960 | M102 | 4 | – | 85 | 40 | 55 | 110 | 130 | – | – | – | – |
52965 | M105 | 4 1/8 | – | 80 | 40 | 55 | 110 | 120 | – | – | 3 1/2 | – |
52970 | M108 | 4 1/4 | – | 80 | 40 | 50 | 100 | 120 | – | – | – | – |
52975 | M110 | 4 3/8 | – | 80 | 40 | 55 | 100 | 120 | – | – | – | – |
52980 | M114 | 4 1/2 | – | 75 | 35 | 50 | 100 | 105 | – | – | 4 | – |
52985 | M121 | 4 3/4 | – | 70 | 35 | 45 | 90 | 95 | – | – | – | – |
52990 | M127 | 5 | – | 65 | 30 | 40 | 85 | 90 | – | – | – | – |
52995 | M140 | 5 1/2 | – | 60 | 30 | 35 | 80 | 85 | – | – | – | – |
53000 | M152 | 6 | – | 55 | 25 | 35 | 75 | 85 | – | – | – | – |
