{1}
{1}
{1}
Useful links
ARCH Cutting Tools Logo ARCH Cutting Tools Logo
Hello, Sign In My Account
0 Cart Total: $0.00
  • Home, Standard Tools
    • Standard Tools, Application
      • Application, Milling
        • Milling, Side Mill
        • Milling, Saw
        • Milling, Single Angle, Shank
        • Milling, Single Angle, Arbor
        • Milling, Double Angle, Shank
        • Milling, Double Angle, Arbor
        • Milling, Convex, Shank
        • Milling, Convex, Arbor
        • Milling, Concave, Shank
        • Milling, Concave, Arbor
        • Milling, Plain Mill
        • Milling, Shell Mill
        • Milling, Keyseat Cutter, Arbor
        • Milling, Keyseat Cutter, Shank
        • Milling, Keyseat Cutter, Woodruff
        • Milling, T-Slot Cutter
        • Milling, Dovetail Cutter
        • Milling, Endmill, Solid
        • Milling, Endmill, Indexable
        • Milling, Endmill, PCD
        • Milling, Chamfer Mill, Solid
        • Milling, Chamfer Mill, Indexable
        • Milling, Drill Mill
        • Milling, Face Mill, Indexable
        • Milling, Profile Mill, Arbor, Indexable
        • Milling, Profile Mill, Shank, Indexable
        • Milling, High Feed Mill, Indexable
        • Milling, Corner Round, Arbor
        • Milling, Corner Round, Shank
        • Milling, Engraving
        • Milling, ISO Milling
      • Application, Holemaking
        • Holemaking, Spotting Drill
        • Holemaking, Centerdrill
        • Holemaking, Drill, Solid
        • Holemaking, Drill, Indexable
        • Holemaking, Chamfer Mill, Solid
        • Holemaking, Chamfer Mill, Indexable
        • Holemaking, Counterbore, Solid
        • Holemaking, Counterbore, Indexable
      • Application, Turning
        • Turning, Boring Bar, Solid
        • Turning, Boring Bar, Indexable
        • Turning, Square Shank
        • Turning, Modular Head, ID
      • Application, Grooving
        • Grooving, Saw
        • Grooving, Side Mill
        • Grooving, Keyseat Cutter
        • Grooving, T-Slot Cutter
        • Grooving, Boring Bar, Solid
        • Grooving, Boring Bar, Indexable
        • Grooving, Square Shank
        • Grooving, Modular Head
      • Application, Threading
        • Threading, Boring Bar
        • Threading, Square Shank
        • Threading, Modular Head
      • Application, Slotting
        • Slotting, Saw
        • Slotting, Side Mill
        • Slotting, Keyseat Cutter
        • Slotting, T-Slot Cutter
      • Application, Chamfering
        • Chamfering, Chamfer Mill, Solid
        • Chamfering, Chamfer Mill, Indexable
        • Chamfering, Countersink
      • Application, Tooling Sets
        • Tooling Sets, Centerdrill Sets
        • Tooling Sets, Countersink Sets
        • Tooling Sets, Counterbore Sets
        • Tooling Sets, Keyseat Cutter Sets
        • Tooling Sets, Bur Sets
        • Tooling Sets, ER Collet Sets
        • Tooling Sets, Steel Boring Bar Kits
      • Application, Tool Holding
        • Tool Holding, CAT40
        • Tool Holding, CAT50
        • Tool Holding, HSK40
        • Tool Holding, HSK50
        • Tool Holding, HSK63A
        • Tool Holding, HSK80
        • Tool Holding, HSK100A
        • Tool Holding, HSK125A
        • Tool Holding, ER Collet
        • Tool Holding, PSC
      • Application, Tooling Systems
        • Tooling Systems, PSC
        • Tooling Systems, Pin Lock
        • Tooling Systems, Serrated
        • Tooling Systems, ISO Milling
      • Application, Inserts
        • Inserts, Grooving
        • Inserts, Threading
        • Inserts, Turning
        • Inserts, Drilling
        • Inserts, Milling
        • Inserts, Profiling
      • Application, Spare Parts / Accessories
        • Spare Parts / Accessories, Screw
        • Spare Parts / Accessories, Shim
        • Spare Parts / Accessories, Lock Pin
        • Spare Parts / Accessories, Clamp
        • Spare Parts / Accessories, Clamp Assembly
        • Spare Parts / Accessories, Wrench
        • Spare Parts / Accessories, Anvil
        • Spare Parts / Accessories, ColletWrench
        • Spare Parts / Accessories, Drive Key
        • Spare Parts / Accessories, Head Bolt Kit
        • Spare Parts / Accessories, Retention Knob
        • Spare Parts / Accessories, Coolant Tube
        • Spare Parts / Accessories, Bushing
        • Spare Parts / Accessories, Nut
        • Spare Parts / Accessories, Extension, ER Collet
        • Spare Parts / Accessories, Edtension, Shrink Fit
      • Application, Bur Tooling
    • Standard Tools, Product Series
      • Product Series, KEO
        • KEO, 900 Single / Double Angle Cutter
        • KEO, 902 Solid Counterbore
        • KEO, 904 Concave Cutter, Arbor
        • KEO, 905 Concave Cutter, Shank
        • KEO, 906 Centerdrill
        • KEO, 907 Centerdrill, Long
        • KEO, 909 Chamfer Mill, Cutter
        • KEO, 917 Countersink, 3 & 4 Flute
        • KEO, 918 Corner Round Mill, Arbor
        • KEO, 919 Countersink, 0 & 1 & 6 Flute, Euro, Machine
        • KEO, 921 Convex Cutter, Arbor
        • KEO, 922 Convex Cutter, Shank
        • KEO, 924 Double Angle, Shank
        • KEO, 925 Circuit Board Drill
        • KEO, 929 Dovetail Cutter
        • KEO, 930 931 934 End Mill
        • KEO, 932 Corner Round End Mill
        • KEO, 933 Drill Mill
        • KEO, 935 PCD End Mill
        • KEO, 937 Engraving Tool
        • KEO, 938 Shell Mill
        • KEO, 943 Keyseat Cutter, Shank
        • KEO, 947 Marking Cutter
        • KEO, 948 Plain Mill
        • KEO, 949 Shell Mill, Rough
        • KEO, 950 Saw
        • KEO, 952 Side Mill
        • KEO, 955 956 Spotting Drill
        • KEO, 964 T-Slot Cutter
      • Product Series, ULTRA-DEX
        • ULTRA-DEX, 901 Tool Bushing / Boring Bar Sleeve
        • ULTRA-DEX, 903 Carbide Straight Shank ER Collet Extension
        • ULTRA-DEX, 910 STEALTH Anti-Vibration Boring Bar
        • ULTRA-DEX, 912 STEALTH Modular Boring Bar Head
        • ULTRA-DEX, 913 General Insert
        • ULTRA-DEX, 914 High Performance Insert
        • ULTRA-DEX, 915 Reduced Neck Boring Bar
        • ULTRA-DEX, 916 ER Collet
        • ULTRA-DEX, 920 Carbide Boring Bar
        • ULTRA-DEX, 940 Heavy Metal Boring Bar
        • ULTRA-DEX, 926 Indexable Drill
        • ULTRA-DEX, 942 Carbide ISO Milling Bar
        • ULTRA-DEX, 944 Modular Tooling Systems
        • ULTRA-DEX, 944 PSC Tooling Systems
        • ULTRA-DEX, 945 Modular Head
        • ULTRA-DEX, 946 F90AP Indexable Face / Shoulder Mill
        • ULTRA-DEX, 946 E90AP Indexable End Mill
        • ULTRA-DEX, 946 ER Indexable Profile / Button Mill
        • ULTRA-DEX, 946 FR Indexable Profile / Button Mill
        • ULTRA-DEX, 957 Steel Body Boring Bar
        • ULTRA-DEX, 951 Solid Carbide Boring Bar
        • ULTRA-DEX, 958 Steel ER Extension Holder
        • ULTRA-DEX, 960 Swiss Square Shank Holder
        • ULTRA-DEX, 966 CAT40 Tool Holder
        • ULTRA-DEX, 966 CAT50 Tool Holder
        • ULTRA-DEX, 966 HSK40 Tool Holder
        • ULTRA-DEX, 966 HSK50 Tool Holder
        • ULTRA-DEX, 966 HSK63 Tool Holder
        • ULTRA-DEX, 966 HSK80 Tool Holder
        • ULTRA-DEX, 966 HSK80 Tool Holder
        • ULTRA-DEX, 966 HSK100 Tool Holder
        • ULTRA-DEX, 966 HSK125 Tool Holder
        • ULTRA-DEX, 967 Finished Blank Tool Holder
        • ULTRA-DEX, 968 Insert Screw / Hardware
        • ULTRA-DEX, 969 HSK Coolant Tube
        • ULTRA-DEX, 971 Retention Knob
        • ULTRA-DEX, 973 Shrink Fit Extension
        • ULTRA-DEX, 974 Square Shank Holder
      • Product Series, REVERE
        • REVERE, 977 Quarter Horse End Mill
      • Product Series, PATRIOT HP
        • PATRIOT HP, 928 High Performance Solid Carbide Drill
        • PATRIOT HP, 966 High Performance CAT50 Shrink Fit Tool Holder
        • PATRIOT HP, 970 PM1 45 Degree Indexable Face Mill
        • PATRIOT HP, 970 PM4 45 Degree Indexable Face Mill
        • PATRIOT HP, 970 PM2 90 Degree Indexable Face / Shoulder Mill
        • PATRIOT HP, 970 PM3 10 Degree High Feed Indexable Face Mill
        • PATRIOT HP, 970 Indexable Drill
        • PATRIOT HP, 970 Indexable Counterbore
        • PATRIOT HP, 976 High Performance Solid Carbide End Mill
      • Product Series, ARCH Cutting Tools
        • ARCH Cutting Tools, 978 Carbide Bur
  1. Home
  2. Standard Tools
  3. Application
  4. Turning
  5. Boring Bar, Indexable

ULTRA-DEX® 957 (A24U MDUNR4), Ø1-1/2" Steel Boring Bar, Negative 55° Diamond (KAPR 93°), 4:1 Ratio, Right Hand, Coolant Thru

Photo of 957-000-194

Product Number: 957-000-194

ULTRA-DEX® 957 (A24U MDUNR4), Ø1-1/2" Steel Boring Bar, Negative 55° Diamond (KAPR 93°), 4:1 Ratio, Right Hand, Coolant Thru


104-A24U MDUNR4

Ready to Buy?

Log in to obtain the best pricing and availability.
List Price: $555.50
Your Price: $555.50
Spin UpSpin Down
Quantity is Required Quantity must be a positive round number greater than Quantity must be in correct increments based on minimum value and increment steps. Min Value
  • Overview
ULTRA-DEX® 957 (A24U MDUNR4), Ø1-1/2" Steel Boring Bar, Negative 55° Diamond (KAPR 93°), 4:1 Ratio, Right Hand, Coolant Thru

Product Specs

UM (Unit of Measure):ImperialDmin (Min. Bore Dia.):1.9600KAPR (Entering Angle):93.0LF (Functional Length):14.0000WF (Functional Width):1.1250DCONms (Connection Diameter Machine Side):1.5000ADINTms (Connection Type Machine Side):Straight Shank - Imperial 1.5000 - with FlatBMC (Tool Material):SteelCoolant Thru:Yes
Diagram of 957-000-194

Related Products


968-000-014

CLAMP

914-000-079

DNMG 431-CM2 HM250 NEGATIVE INSERT

914-000-080

DNMG 431-CX1 HP250 NEGATIVE INSERT

913-000-285

DNMG 431-ZM1 UD32 NEGATIVE INSERT

913-000-286

DNMG 431-ZP1 UD51 NEGATIVE INSERT

913-000-287

DNMG 431-ZP1 UD52 NEGATIVE INSERT

913-000-288

DNMG 431-ZX2 UD21 NEGATIVE INSERT

914-000-081

DNMG 432-CM2 HM250 NEGATIVE INSERT

914-000-082

DNMG 432-CX1 HP250 NEGATIVE INSERT

913-000-289

DNMG 432-ZM1 UD32 NEGATIVE INSERT

913-000-290

DNMG 432-ZP1 UD51 NEGATIVE INSERT

913-000-291

DNMG 432-ZP1 UD52 NEGATIVE INSERT

913-000-292

DNMG 432-ZX2 UD21 NEGATIVE INSERT

968-000-057

SHIM SEAT

968-000-102

LOCK PIN

968-000-178

CLAMP SCREW
Top

Your Complete Tool Making Authority ®

ARCH Cutting Tools Logo
  • (888) 390-2025
  • Standard Tools
  • Special Tools
  • Services
  • My Account
  • Contact Us
  • Find a Distributor
© 2026 ARCH Cutting Tools | All Rights Reserved
  • Privacy Policy
  • CCPA Request
  • Sitemap
  • Machine Readable Files
Loading...