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Earl Diamond Super Heavy Duty Drill Chuck 5/8" Capacity with R8 Shank Precision Integrated & Chuck Jaw Tightening Key (R8-B18)

Description:

  • Material: 40CR, Hardness HRC60.
  • Clamping Range: 3-16mm (1/8"~5/8").
  • R8 Shank: Suitable for drill presses or lathes spindle accepts R8 shank.
  • Maximum T. I. R. does not exceed,accuracy: 0.005".
  • Component: Chuck jaw tightening key.

  • Reviews:

    5.0 out of 5 stars Great value and fits Porter Cable PCB660DP

    C. · July 22, 2022

    The stock chuck in my Porter Cable PCB660DP was never that great to begin with (runout) and over the years started clamping unevenly. I worked around it by unclamping/reclamping the bit and it was good enough for woodworking. Lately I've gotten into metal working and need a DP with mill-like accuracy. A relatively cheap, big-box store drill press isn't a mill and has a lot more driveline slop.Bought this chuck and arbor combo based on the reviews, to just replace the entire stock assembly and it was a good gamble. Arbor comes packed in it's own hard plastic sleeve and the chuck well-greased up in a plastic bag. Quality of both is very good. Surfaces are clean, smooth and free of tooling marks. The chuck is a little stiff to open/close, but it will loosen up with use.Overall, I think this is a great value.

    5.0 out of 5 stars Nice drill chuck

    J.D. · January 16, 2025

    Works perfect on my lathe tail stock. Good quality for the price.

    5.0 out of 5 stars Good value for the hobbyist machinist

    D.E.M. · April 28, 2025

    Made well enough for a hobbyist machinist such as myself, especially for the cost.

    4.0 out of 5 stars Quality for the price

    j.r. · June 22, 2023

    This chuck looks good and seems to work well but I have not had a chance to use it enough to say how durable it will be.

    5.0 out of 5 stars Solid chuck. Taper fit holds tight. Drill bits didn't slip.

    E. · July 22, 2022

    I bought the 1/2" chuck with R8 shank to use on a Bridgeport mill. I'm using this in a low use application, not a production shop. It smoothly opens and closes across the range. I didn't notice any issues seating the tapered shank. I degreased the mating chuck taper and shank taper. I then deburred both tapers with fine stones (this probably wasn't necessary). I warmed up the chuck in the oven and put the shank in the freezer. I put the two together and quickly gave it a whack with a lead hammer. I drilled some 1/4" holes in aluminum and cold rolled steel so far. I spot drilled first with a collet and then drilled with the chuck. The old mill held under 0.002" on size, and location between holes. No complaints so far. I'll update this review if something comes up. So far I'm happy I took a chance on this affordable option.

    5.0 out of 5 stars Works well

    R. · August 31, 2025

    Works well on my Jet lathe 1224.

    5.0 out of 5 stars Good buy

    J.L.Y. · August 13, 2025

    Pretty good runout for the price.

    3.0 out of 5 stars Too loose for JET 1015 mini lathe

    H. · June 8, 2025

    Nicely made, but even though it is an MT2 Morse taper it's a little too long for the JET 1015vs mini lathe. Drill bit had a lot of wobble. Similar item that is half the price by wn works much better for my machine.

    Time will tell on quality

    B.B. · July 28, 2025

    So far, so good.

    Exactly as advertised

    w.o.t. · February 18, 2025

    Prompt delivery, well packed, exactly as advertised

    You get what you pay for.

    F. · July 30, 2024

    Medium quality. Ok for the home owner

    Good product

    C. · February 3, 2025

    Works well

    Good buy

    D. · March 26, 2024

    Fits & working as it should

    Earl Diamond Super Heavy Duty Drill Chuck 5/8" Capacity with R8 Shank Precision Integrated & Chuck Jaw Tightening Key (R8-B18)

    Product ID: UO081FFFYCI
    Condition: New

    4.5

    AED42179

    Price includes VAT & Import Duties
    Color: R8-b18
    Product imageProduct imageProduct imageProduct image
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    This item qualifies for free delivery

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Drill Chucks”

    Earl Diamond Super Heavy Duty Drill Chuck 5/8" Capacity with R8 Shank Precision Integrated & Chuck Jaw Tightening Key (R8-B18)

    Product ID: UO081FFFYCI
    Condition: New

    4.5

    Earl Diamond Super Heavy Duty Drill Chuck 5/8" Capacity with R8 Shank Precision Integrated & Chuck Jaw Tightening Key (R8-B18)-0
    Color: R8-b18
    Product imageProduct imageProduct imageProduct image

    AED42179

    Price includes VAT & Import Duties
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    This item qualifies for free delivery

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Description:

  • Material: 40CR, Hardness HRC60.
  • Clamping Range: 3-16mm (1/8"~5/8").
  • R8 Shank: Suitable for drill presses or lathes spindle accepts R8 shank.
  • Maximum T. I. R. does not exceed,accuracy: 0.005".
  • Component: Chuck jaw tightening key.

  • Reviews:

    5.0 out of 5 stars Great value and fits Porter Cable PCB660DP

    C. · July 22, 2022

    The stock chuck in my Porter Cable PCB660DP was never that great to begin with (runout) and over the years started clamping unevenly. I worked around it by unclamping/reclamping the bit and it was good enough for woodworking. Lately I've gotten into metal working and need a DP with mill-like accuracy. A relatively cheap, big-box store drill press isn't a mill and has a lot more driveline slop.Bought this chuck and arbor combo based on the reviews, to just replace the entire stock assembly and it was a good gamble. Arbor comes packed in it's own hard plastic sleeve and the chuck well-greased up in a plastic bag. Quality of both is very good. Surfaces are clean, smooth and free of tooling marks. The chuck is a little stiff to open/close, but it will loosen up with use.Overall, I think this is a great value.

    5.0 out of 5 stars Nice drill chuck

    J.D. · January 16, 2025

    Works perfect on my lathe tail stock. Good quality for the price.

    5.0 out of 5 stars Good value for the hobbyist machinist

    D.E.M. · April 28, 2025

    Made well enough for a hobbyist machinist such as myself, especially for the cost.

    4.0 out of 5 stars Quality for the price

    j.r. · June 22, 2023

    This chuck looks good and seems to work well but I have not had a chance to use it enough to say how durable it will be.

    5.0 out of 5 stars Solid chuck. Taper fit holds tight. Drill bits didn't slip.

    E. · July 22, 2022

    I bought the 1/2" chuck with R8 shank to use on a Bridgeport mill. I'm using this in a low use application, not a production shop. It smoothly opens and closes across the range. I didn't notice any issues seating the tapered shank. I degreased the mating chuck taper and shank taper. I then deburred both tapers with fine stones (this probably wasn't necessary). I warmed up the chuck in the oven and put the shank in the freezer. I put the two together and quickly gave it a whack with a lead hammer. I drilled some 1/4" holes in aluminum and cold rolled steel so far. I spot drilled first with a collet and then drilled with the chuck. The old mill held under 0.002" on size, and location between holes. No complaints so far. I'll update this review if something comes up. So far I'm happy I took a chance on this affordable option.

    5.0 out of 5 stars Works well

    R. · August 31, 2025

    Works well on my Jet lathe 1224.

    5.0 out of 5 stars Good buy

    J.L.Y. · August 13, 2025

    Pretty good runout for the price.

    3.0 out of 5 stars Too loose for JET 1015 mini lathe

    H. · June 8, 2025

    Nicely made, but even though it is an MT2 Morse taper it's a little too long for the JET 1015vs mini lathe. Drill bit had a lot of wobble. Similar item that is half the price by wn works much better for my machine.

    Time will tell on quality

    B.B. · July 28, 2025

    So far, so good.

    Exactly as advertised

    w.o.t. · February 18, 2025

    Prompt delivery, well packed, exactly as advertised

    You get what you pay for.

    F. · July 30, 2024

    Medium quality. Ok for the home owner

    Good product

    C. · February 3, 2025

    Works well

    Good buy

    D. · March 26, 2024

    Fits & working as it should

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Drill Chucks”