Step Reamers


TOOL SELECTOR
CHIP
CLASS		MATERIAL MACHINEDTOOL TYPE
 20  NON-FERROUS - LONG CHIPS  442ST 
 40  NON-FERROUS - SHORT CHIPS  442ST / 443ST 
 60  CAST IRONS  443ST 
 80  LOW STRENGTH STEELS  444ST / 443ST 
 100  MEDIUM STRENGTH STEELS  444ST 
 120  HIGH STRENGTH STEELS  444ST 
 140  HIGH TEMPERATURE ALLOYS  444ST

Type 444 Step Reamers - For Steels & High Temp Alloys
Carbide Tipped
  • Type "C" with flute long carbide
  • Right spiral polished flutes and straight shank
  • Geometry and carbide grade appropriate for material being machined
  • Carbide tips brazed to tough hardened alloy steel body
  • Polished flutes for easy chip flow
  • Precision ground cutting edges
  • Material specific reamer shanks are ground to next smallest shank diameter listed in NAS 897 if tool diameter is within .005" of shank diameter
 		  Modifications: (Prompt delivery)
  • Modified tool diameter - priced below
  • Metric tool diameter
  • Closer tool diameter tolerance
  • End chamfer other than 45º
  • End cutting or corner radius
  • Increased / decreased circular margin
  • Increased / decreased tool diameter back taper
  • Shortened shank or reduced shank diameter
  • Flat(s) or tang on shank
  • Coatings available:
     TITANIUM NITRIDE - TiN 
     TITANIUM CARBONITRIDE - TiCN 
     ZIRCONIUM NITRIDE - ZrN 
     AL TITANIUM NITRIDE - AITiN 

Notes
  Ordering Instructions:
Specify dimensions according to the letters (A, B, C, D, G & H) indicated on line drawing. Also, indicate if pilot is cutting or non-cutting and describe material being machined.
  Recommended stock removal is 3% per cutting diameter. Maximum between major and minor diameter (cutting or non-cutting pilot) should not exceed 6%. Both major and minor cutting diameter must be within cuttting diameter range listed. Non-cutting pilot diameter can be smaller than cutting diameter range as indicated in the "non-cutting pilot minmum diameter" column.
Below is a list of standard Step Reamers offered by Hannibal Carbide Tool. If you do not see the Step Reamers you are looking for you can click here for our SPECIAL TOOL QUOTE REQUEST FORM and fax (573-221-1140) or email your request to Hannibal. Within 24 hours we will let you know how we can supply your Step Reamers. For technical assistance with your Reamers please click here to fill out and submit our HANNIBAL TECHNICAL SUPPORT QUESTIONNAIRE.
Major & Minor Cutting Diameter Range Dimensions Type 444
EDP NO.		 Finished to Modified Tool Diameter
Price Each - Based on Quantity Ordered
Diameter No. of Flutes Length
Low High Non-Cut Pilot Min. Max. Shank Flute & Carbide Overall 1 2 3 4 5-7 8-14 Over 14
 .2841  .3150  .2670  .2792 4 1  1/2  6         44410ST $183.50 $144.60 $131.75 $125.50 $118.90 $113.70 $106.05
 .3151  .3470  .2960  .2792 4 1  1/2  6         44411ST 194.25 155.45 142.40 136.35 129.60 124.45 116.85
 .3471  .3780  .3260  .3105 4 1  3/4  7         44412ST 195.30 156.60 143.60 137.45 130.80 125.50 118.05
 .3781  .4090  .3550  .3105 4 1  3/4  7         44413ST 200.55 161.80 148.80 142.60 135.95 130.80 123.15
 .4091  .4410  .3850  .3730 6 1  3/4  7         44414ST 205.25 166.60 153.50 147.40 140.70 135.55 127.85
 .4411  .4720  .4150  .3730 6 1  3/4  7         44415ST 213.40 174.70 161.75 155.50 148.95 143.65 136.10
 .4721  .5030  .4440  .4355 6 2         8         44416ST 229.20 187.85 173.95 167.40 160.40 154.75 146.70
 .5031  .5340  .4730  .4355 6 2         8         44417ST 233.45 192.15 178.25 171.70 164.60 159.10 151.00
 .5341  .5660  .5020  .4355 6 2         8         44418ST 233.45 192.15 178.25 171.70 164.60 159.10 151.00
 .5661  .5970  .5320  .4355 6 2         8         44419ST 237.85 196.60 182.85 176.20 169.15 163.55 155.45
 .5971  .6280  .5610  .5615 6 2  1/4  9         44420ST 237.85 196.60 182.85 176.20 169.15 163.55 155.45
 .6281  .6590  .5900  .5615 6 2  1/4  9         44421ST 242.80 201.65 187.60 181.10 173.95 168.45 160.40
 .6591  .6910  .6200  .5615 6 2  1/4  9         44422ST 252.85 211.45 197.60 191.00 184.00 178.45 170.30
 .6911  .7220  .6500  .5615 6 2  1/4  9         44423ST 255.35 214.05 200.25 193.65 186.55 180.95 172.95
 .7221  .7530  .6790  .6245 6 2  1/2  9  1/2  44424ST 257.90 216.60 202.75 196.20 189.15 183.55 175.40
 .7531  .7840  .7080  .6245 6 2  1/2  9  1/2  44425ST 262.60 221.25 207.40 200.90 193.75 188.20 180.10
 .7841  .8160  .7370  .6245 6 2  1/2  9  1/2  44426ST 262.60 221.25 207.40 200.90 193.75 188.20 180.10
 .8161  .8470  .7670  .6245 6 2  1/2  9  1/2  44427ST 272.40 231.10 217.25 210.65 203.45 197.95 189.85
 .8471  .8780  .7970  .7495 6 2  5/8  10         44428ST 282.65 239.80 225.40 218.65 211.20 205.45 197.10
 .8781  .9090  .8260  .7495 6 2  5/8  10         44429ST 315.10 272.10 257.75 250.95 243.60 237.80 229.30
 .9091  .9410  .8550  .7495 8 2  5/8  10         44430ST 315.10 272.10 257.75 250.95 243.60 237.80 229.30
 .9411  .9720  .8850  .7495 8 2  5/8  10         44431ST 326.30 283.40 269.10 262.10 254.85 249.10 240.75
 .9721 1.0030  .9140  .8745 8 2  3/4  10  1/2  44432ST 326.30 283.40 269.10 262.10 254.85 249.10 240.75
1.0031 1.0660  .9430  .8745 8 2  3/4  10  1/2  44434ST 368.50 325.55 311.20 304.35 297.00 291.30 282.85
1.0661 1.1280 1.0020  .8745 8 2  7/8  11         44436ST 377.25 334.30 319.95 313.15 305.75 300.00 291.55
1.1281 1.1905 1.0610  .9995 8 2  7/8  11         44438ST 392.20 349.40 334.95 328.15 320.75 315.05 306.60
1.1906 1.2530 1.1200  .9995 8 3         11  1/2  44440ST 409.80 367.00 352.65 345.70 338.45 332.65 324.20
1.2531 1.3155 1.1780  .9995 8 3         11  1/2  44442ST 444.60 401.65 387.25 380.50 373.05 367.30 358.95
1.3156 1.3780 1.2370  .9995 8 3  1/4  12         44444ST 478.75 435.85 421.60 414.70 407.30 401.55 393.30
1.3781 1.4405 1.2960  .9995 8 3  1/4  12         44446ST 502.15 459.20 444.90 438.05 430.75 424.95 416.55
1.4406 1.5030 1.3550 1.2495 8 3  1/2  12  1/2  44448ST 525.75 482.90 468.50 461.70 454.35 448.65 440.10
The specifications of the Step Reamers listed above are only the dimensions that are critical to the application. Please choose the Reamers that meet your specific needs.

Everyone at Hannibal would like to THANK YOU for the privilege of servicing your Step Reamers needs.