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    32 Products

    R8 Taper End Mill Holders

    Image of Product. Front orientation. Contains Annotated. End Mill Holders. R8 Taper End Mill Holders.
    Hold end mills, drills, and reamers securely in manual milling machines that have an R8 taper spindle. Holders are ground to accurate size.
    Head
    For End Mill
    Shank Dia.
    For No. of End
    Mill Milling Ends
    Internal
    Thread Size
    Dia.
    Lg.
    Material
    Fabrication
    Includes
    Each
    1/8"17/16"-20
    		3/4"1 3/8"Steel
    		Heat TreatedSet Screws8781A33000000
    3/16"1, 27/16"-20
    		3/4"1 3/8"Steel
    		Heat TreatedSet Screws8781A2100000
    1/4"1, 27/16"-20
    		51/64"1 3/8"Steel
    		Heat TreatedSet Screws8781A3200000
    5/16"17/16"-20
    		7/8"1 3/4"Steel
    		Heat TreatedSet Screws8781A3400000
    3/8"1, 27/16"-20
    		1"1 3/8"Steel
    		Heat TreatedSet Screws8781A2200000
    1/2"17/16"-20
    		1 3/8"1 3/8"Steel
    		Heat TreatedSet Screws8781A2300000
    5/8"17/16"-20
    		1 21/32"1 1/2"Steel
    		Heat TreatedSet Screws8781A2400000
    3/4"17/16"-20
    		1 57/64"2 3/8"Steel
    		Heat TreatedSet Screws8781A25000000
    7/8"17/16"-20
    		2"2 3/4"Steel
    		Heat TreatedSet Screws8781A26000000
    1"17/16"-20
    		2 3/8"3 1/4"Steel
    		Heat TreatedSet Screws8781A27000000
    1 1/4"17/16"-20
    		2 1/2"3 1/4"Steel
    		Heat TreatedSet Screws8781A28000000
    1 1/2"17/16"-20
    		3"3 3/4"Steel
    		Heat TreatedSet Screws8781A29000000

    R8 Taper to Morse Taper Shank Adapters

    Image of Product. Front orientation. Contains Annotated. Machine Taper Shank Adapters. R8 Taper to Morse Taper Shank Adapters.
    Image of Attribute. Front orientation. Contains Annotated. R8 Taper to Morse Taper Shank Adapters.
    Adapt machines with R8 taper spindles to mount tools with a Morse taper shank, including drill bits, drill chucks, and reamers. These adapters are made of hardened steel and are precision ground for accuracy. They thread onto your machine’s drawbar for a secure connection.
    Slide your tool into these adapters and then press firmly to seat it. To separate them, use a Morse taper removal tool.
    Shank
    Type
    For Machine
    Taper No.
    Projection
    Material
    Each
    R8 TaperMorse 27/16"Hardened Steel8784A14000000
    R8 TaperMorse 32 1/2"Hardened Steel8784A15000000

    Quick-Change Milling Machine Tool Holders

    Image of System. Front orientation. Exploded view. Contains Annotated, MultipleImages. Milling Machine Tool Holders. Quick-Change Milling Machine Tool Holders.
    Swap tool holders in seconds without a wrench. This R8 quick-change system replaces conventional drawbar setups that require multiple turns to change tooling. A brass locking button and spring-loaded collar allow one-handed tool changes, so you can move quickly between drilling, milling, and facing operations. The R8 body installs in your milling machine spindle, letting you switch holders to reduce downtime between operations.
    R8 Body
    Image of Product. Front orientation. Milling Machine Tool Holders. Quick-Change Milling Machine Tool Holders, R8 Body.
    R8 Taper
    Shank Thread
    Total Indicated Runout
    (TIR) Accuracy
    Gender
    Size
    Spindle
    Overhang
    Material
    Each
    0.0005"Female7/16"-20
    		1 1/8"Steel
    		2012N11000000000

    R8 Taper Collet Chucks

    Image of Specification. Front orientation. Contains Annotated. Milling Machine Collet Chucks. R8 Taper Collet Chucks.
    Hold collets tightly in Bridgeport and other manual machines with R8 spindles to grip tools for milling, drilling, and routing. These chucks let you use the same ER or TG collets as other machines. This reduces the number of collets you need while also giving you a strong grip on your tools. Insert your collet and tighten the nut to clamp your tool in place. Internal threads on the shank let you connect them to your machine’s drawbar system.
    To maximize grip and minimize runout, choose a chuck where your tool diameter falls in the middle of the bit shank size range.
    Collet Stop Screw—Chucks with a collet stop screw set the tool depth in the chuck for consistent, repeatable performance when you change tools.
    Milling Machine Collet Chucks
    Wrenches
    Replacement Nuts
    For Collet
    Type
    For Bit Shank
    Size
    Projection
    Total Indicated Runout
    (TIR) Accuracy
    Material
    Collet Nut
    Type
    Features
    Each
    Each
    Each
    ER-160.019" to 0.406"1.25"0.0001"Hardened Alloy SteelHex NutCollet Stop Screw9523N1300000003215A4410000009502N33000000
    ER-200.039" to 0.551"2"0.0001"Hardened Alloy SteelHex NutCollet Stop Screw9523N140000001721N15000009502N3400000
    ER-250.039" to 0.629"2.5"0.0001"Hardened Alloy SteelSlotted NutCollet Stop Screw9523N150000005699N128000009502N3500000
    ER-320.078" to 0.787"2.25"0.0002"Hardened Alloy SteelSlotted Nut—9523N110000003321A32000009502N1500000
    ER-400.118" to 1.024"2.375"0.0002"Hardened Alloy SteelSlotted Nut—9523N1200000032605A95000009502N1600000
    TG-1000.0469" to 1"3.25"0.0001"Hardened Alloy SteelSlotted NutCollet Stop Screw9523N1600000032605A95000009531N1200000
     
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