duMONT Minute Man® Stock Keyway and Slotting Inserts

The duMONT Company’s  stock keyway and slotting inserts feature the most common American standard sizes (3/32″ –  3/4″). The inserts may be used in either 25mm or 32mm diameter shank tool holders.  The chamfer feature is available by specifying a “-C” after the EDP#.

Keyway Slotting Inserts

Custom orders: We are fully capable of providing custom inserts and tool holders to meet your specifications and requirements.  Keyways, cornering tools, (square, hexagon, etc.), internal toothing and grooving (spline and serration) to ANSI, DIN and ISO standards are available.  See custom inserts and applications.

Inserts
Inch
EDP#
Width of
Insert (L1)
Inch*
Width of
Insert (L1)
Tolerances
Tool Holder
Size
25m or 32mm
Std./Long
Length
Minimum
Bore Dia.
Inch
Insert
Height
(L2)
Inch
Body
Width
(L3)
Inch
Body
Height
(L4)
Inch
Full
Length
(L5)
Inch
Depth of Cut
per Stroke
Mild Steel
Pressure
Required
Mild Steel
99202 3/32 .0938 - .09482 .276 .276 .236 .197 .256 .0040 170 lbs.
99203 1/8 .1252 - .12623 .335 .276 .236 .197 .315 .0040 226
99206 5/32 .1564 - .15744 .413 .276 .236 .197 .315 .0038 268
99207 3/16 .1877 - .18875 .492 .276 .236 .197 .315 .0033 279
99209 1/4 .2502 - .25126 .650 .354 .394 .236 .531 .0025 282
99210 9/32 .2813 - .28238 .827 .354 .394 .236 .531 .0023 292
99212 5/16 .3127 - .31378 .827 .354 .394 .236 .531 .0023 324
99213 3/8 .3755 - .376510 1.102 .551 .512 .394 .728 .0020 338
99214 7/16 .4380 - .439012 1.181 .551 .709 .394 .866 .0020 395
99215 1/2** .5006 - .501612 1.181 .551 .709 .394 .866 .0018 406
99242 9/16** .5631 - .564114/16 1.378 .551 .709 .394 .866 .0017 431
99216 5/8** .6260 - .627014/16 1.378 .551 .709 .394 .866 .0017 479
99217 3/4** .7515 - .752518/26 1.654 .551 .709 .394 .866 .0015 508

*Chamfer Feature providing a 45 Deg. Chamfer at the intersection of the bore and the walls of the broached section when cut to full depth is available by specifying a "-C" in the EDP# for example — 99207-C.
**It is necessary on larger cuts 12 mm or 1/2 inch Keyways and above to cut in two operations, a roughing pass with a smaller width insert (approximate 1/2 required width) and finishing pass at the desired width. This approach reduces the pressure required.