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    Micro Finish Boring Tools - China Suppliers & Factory of High Precision CBH Boring Tools for Hole Making
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    Micro Finish Boring Tools - China Suppliers & Factory of High Precision CBH Boring Tools for Hole Making

    CBH micro finish boring tools, manufactured by a leading China factory, have been a top choice for industry professionals in hole-making applications for over a decade. As one of Derek’s most competitive products, these boring tools are specifically designed for various purposes, including boring, back-boring, and external boring. Built with precision, our tools utilize the CK connector system, ensuring connector repeat assembly accuracy within an impressive 0.003mm. As reliable suppliers in the market, we prioritize quality and performance, making our CBH boring tools a preferred option for businesses seeking excellence in their drilling operations.
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      Product Detail

      DEREK

      DCK Modular Boring Tools

      High Precision, High Strength and Easy Operation — The Best Style of Connection
      DCK Modular Boring Tools Details
      • Change locking force to axial tension by using 30° taper screws. The boring head and arbor would be attached closely. (Fig A)
      • Modular design makes the setting of boring range and depth much easier. Reducers, extensions, and chamfering rings provide multifunctional work. (Fig B)
      • High working efficiency brings down the production cost due to high precision of connection.
      DEREK

      CBH Micro Boring Tools - Characteristics

      CBH Micro Boring Tools Characteristics
      • Adjusting rate 0.01mm, adjusting rate reaches 0.001mm by vernier scale.
      • Cartridge have two different inserts TC and TP for option. Cartridge could be mounted in opposite direction for back boring.
      • The small diameter tools with range of 20-203mm use CK connector, which is compatible with mainstream products on the market.
      • The large diameter tools with range of 148-1275mm use the bridge structure, with 70%-90% aluminium, rigid structure and lightweighting, which make cutting more efficient and stable.
      • External boring tools have CBH-M and CBH-L for option, which can reach external boring range: 13-715mm.
      • All series have internal cooling design, which is easy for chip removal, easily cooling, and ensures machining stability.
      Specification Figure Boring Head Specification Figure Boring Head Specification Figure Boring Head
      CBH 1-1 Specification 1 TPGH0802 DCK1-CBH20-36 CBH 4-1 Specification 1 TCMT1102 (With)
      TPGH1103 (For choice)       		DCK4-CBH41-74 CBH 1-1 Specification 3 TCMT1102 (For choice) DCK4-CBH41-74
      1-2 4-2 1-2
      1-3 4-3 1-3
      2-1 DCK2-CBH25-47 5-1 DCK5-CBH53-95 2-1 DCK4-CBH41-74
      2-2 5-2 2-2
      2-3 5-3 2-3
      3-1 DCK3-CBH32-60 6-1 DCK6-CBH68-150
      DCK6-CBH100-203      		 3-1 DCK6-CBH68-150
      DCK6-CBH100-203
      3-2 6-2 3-2
      3-3 6-3 3-3
      Notice: Cartridge CBHx-1 is included in quotation, while CBHX-2 and CBHX-3 shall be ordered separately.
      DEREK

      CBH Back-Boring Instructions

      CBH Back Boring Instructions

      In order to check the feasibility of the back boring operation and select the best tool combination, these values should be calculated as follows:

      C ＞ (D + d) / 2
      • C: Minimum entry bore diameter
      • D: Back bore diameter
      • d: Diameter of boring head
      Operational Note: Anti-clockwise spindle rotation required.
      DEREK

      CBH Finish Boring Tool

      CBH Finish Boring Tool Diagram
      Specification Boring Range Back boring Range Cartridge Insert Screw Wrench Weight
      L1 L B L2 L3
      DCK1-CBH20-36 29.5 32.5 20-26 10 10.5 19 - CBH1-1 TPGH0802 M020D055 Q06 0.06
      29.5 32.5 25-31 10 10.5 19 30-31 CBH1-2 0.06
      29.5 32.5 30-36 10 10.5 19 30-36 CBH1-3 0.06
      DCK2-CBH25-47 32.5 35.5 25-33 12.5 11.5 21 - CBH2-1 0.12
      32.5 35.5 32-40 12.5 11.5 21 36-40 CBH2-2 0.12
      32.5 35.5 39-47 12.5 11.5 21 39-47 CBH2-3 0.12
      DCK3-CBH32-60 35 40 32-42 16 10 25 - CBH3-1 0.20
      35 40 41-51 16 10 25 46-51 CBH3-2 0.20
      35 40 50-60 16 10 25 50-60 CBH3-3 0.20
      DCK4-CBH41-74 43 47 41-54 20 14 29 - CBH4-1 TCMT1102
      (With)
      TPGH1103
      (For choice)      		 M025W060
      M030W070      		 Q08 0.39
      43 47 50-63 20 14 29 53-63 CBH4-2 0.39
      43 47 61-74 20 14 29 61-74 CBH4-3 0.39
      DCK5-CBH53-95 53 57 53-70 25.5 19 34 62-70 CBH5-1 0.80
      53 57 65-82 25.5 19 34 65-82 CBH5-2 0.80
      53 57 78-95 25.5 19 34 78-95 CBH5-3 0.80
      DCK6-CBH100-203 67.2 71 68-100 32.5 22 45.2 80-100 CBH6-1 1.80
      67.2 71 94-126 32.5 22 45.2 94-126 CBH6-2 1.80
      67.2 71 118-150 32.5 22 45.2 118-150 CBH6-3 1.80
      DCK6-CBH68-150 67.2 71 100-153 45.5 22 45.2 112-153 CBH6-1 2.53
      67.2 71 126-179 45.5 22 45.2 126-179 CBH6-2 2.53
      67.2 71 150-203 45.5 22 45.2 150-203 CBH6-3 2.53
      DCK7-CBH100-203 83.2 87 100-153 45.5 22 45.2 112-153 CBH6-1 3.96
      83.2 87 126-179 45.5 22 45.2 126-179 CBH6-2 3.96
      83.2 87 150-203 45.5 22 45.2 150-203 CBH6-3 3.96
      Suitable: DEREK, KYOCERA Or SUMITOMO Insert
      • With internal cooling supply.
      • With balanced structure for high machining precision accuracy.
      • High effectiveness with back-boring function.
      • With side scale for adjustment of μm grade.
      DEREK

      Product Display

      Tool setter alignment
      Tool setter alignment
      Machine the machine tool
      Machine the machine tool
      The surface of workpiece after machining
      The surface of workpiece after machining
      DEREK

      FM-CBH Large Diameter Boring Tool For Finishing

      CBH Micro Boring Tools 1
      CBH Micro Boring Tools 2
      Specification Boring range H Adapter size B-Boring range Work depth Insert Weight
      FMS-CBH148215 148-215 109 FMS 23-90 30 TCMT1102 / TPGH1103 3.18
      FMS-CBH198265 198-265 109 FMS 73-140 30 3.71
      FMS-CBH248315 248-315 109 FMS 123-190 30 4.19
      Specification Picture Insert Screw Wrench Weight
      CBH5-1-TC-V CBH Micro Boring Tools 3 TCMT1102 M025W060 Q08 0.04
      CBH5-1-TP-V TPGH1103 M030W070 Q08 0.04
      Suitable: DEREK, KYOCERA Or SUMITOMO Insert
      Item Specification Picture Weight
      Adapter size HSK-A-FMS DBH Rough Boring 9 -
      BT-FMS -
      SK-FMS -
      BBT-FMS -
      CAT-FMS -
      Extension Aluminum bridge FMS40-148 DBH Rough Boring 10 1.46
      FMS40-198 1.99
      FMS40-248 2.47
      Finish boring Aluminum slider CBH Micro Boring Tools 6
      FMA34-S17 0.29
      Finish boring head CBH Micro Boring Tools 7
      A34-CBH5395 0.55
      Balancing Aluminum weight CBH Micro Boring Tools 8
      FMA34-S17-PZK 0.86
      • 70-90% of material is made from Aluminum.
      • With internal cooling supply.
      • Balanced: G6.3; 1,000 rpm.
      DEREK

      FM-CBH Large Diameter Boring Tool For Finishing

      CBH Micro Boring Tools 9
      CBH Micro Boring Tools 10
      Specification Boring range H Adapter size B-Boring range Work depth Insert Weight
      FMX-CBH298395 298-395 113 FMX 173-270 25 TCMT1102 / TPGH1103 9.50
      FMX-CBH378475 378-475 118 FMX 253-350 25 11.26
      FMX-CBH458555 458-555 123 FMX 333-430 25 13.19
      Specification Picture Insert Screw Wrench Weight
      CBH5-1-TC-V CBH Micro Boring Tools 3 TCMT1102 M025W060 Q08 0.04
      CBH5-1-TP-V TPGH1103 M030W070 Q08 0.04
      Suitable: DEREK, KYOCERA Or SUMITOMO Insert
      Item Specification Picture Weight
      Adapter size HSK-A-FMX CBH Micro Boring Tools 11 -
      BT-FMX -
      SK-FMX -
      BBT-FMX -
      CAT-FMX -
      Extension Aluminum bridge FMX40-298 CBH Micro Boring Tools 12 5.33
      FMX40-378 7.09
      FMX40-458 9.02
      Finish boring slider CBH Micro Boring Tools 13
      FMA34-S24-PZK 1.02
      Finish boring head CBH Micro Boring Tools 14
      A34-CBH5395 0.55
      Balancing weight CBH Micro Boring Tools 15
      FMA34-S24-PZK 1.56
      • 70-90% of material is made from Aluminum.
      • With internal cooling supply.
      • Balanced: G6.3; 1,000 rpm.
      DEREK

      FM-CBH Large Diameter Boring Tool For Finishing

      CBH Micro Boring Tools
      CBH Micro Boring Tools 16
      Specification Boring range H Adapter size B-Boring range Work depth Insert Weight
      FMX-CBH538795 538-795 197 FMX 413-670 25 TCMT1102 / TPGH1103 25.64
      FMX-CBH7781035 778-1035 217 FMX 653-910 25 36.83
      FMX-CBH10181275 1018-1275 217 FMX 893-1150 25 44.26
      Specification Picture Insert Screw Wrench Weight
      CBH5-1-TC-V CBH Micro Boring Tools 3 TCMT1102 M025W060 Q08 0.04
      CBH5-1-TP-V TPGH1103 M030W070 Q08 0.04
      Suitable: DEREK, KYOCERA Or SUMITOMO Insert
      Item Specification Picture Weight
      Adapter size HSK-A-FMX CBH Micro Boring Tools 11 -
      BT-FMX -
      SK-FMX -
      BBT-FMX -
      CAT-FMX -
      Extension Aluminum bridge FMX40-538 CBH Micro Boring Tools 18 14.77
      FMX40-778 25.96
      FMX40-1018 33.39
      Long Aluminum Sider CBH Micro Boring Tools 19
      FMA35-S24 3.35
      Finish boring slider CBH Micro Boring Tools 13
      FMA34-S24 1.02
      Finish boring head CBH Micro Boring Tools 14
      A34-CBH5395 0.55
      Balancing weight CBH Micro Boring Tools 15
      FMA34-S24-PZK 1.56
      • 70-90% of material is made from Aluminum.
      • With internal cooling supply.
      • Balanced: G6.3; 1,000 rpm.
      DEREK

      CBH-M Boring Tool For Pin Turning

      CBH Micro Boring Tools 22
      CBH Micro Boring Tools 23
      Specification Range Фd Bridge frame Side-lock screw Boring head Balance weight Insert holder Insert Boring range Weight
      DCK6-CBH24-34-M 24-34 DCK6-2452-42  114 M120Z200-30P-D CBH32-60 DCK3-CBH CBH3-3 TPGH0802 134-144 1.60
      DCK6-CBH33-43-M 33-43 CBH32-60 DCK3-CBH CBH3-2 TPGH0802 125-135 1.60
      DCK6-CBH42-52M 42-52 CBH32-60 DCK3-CBH CBH3-1 TPGH0802 116-126 1.60
      DCK6-CBH52-62-M 52-62 DCK6-5280-42  142 M120Z200-30P-D CBH32-60 DCK3-CBH CBH3-3 TPGH0802 162-172 1.80
      DCK6-CBH61-71-M 61-71 CBH32-60 DCK3-CBH CBH3-2 TPGH0802 153-163 1.80
      DCK6-CBH70-80-M 70-80 CBH32-60 DCK3-CBH CBH3-1 TPGH0802 144-154 1.80
      DCK6-CBH80-90-M 80-90 DCK6-80108-42  170 M120Z200-30P-D CBH32-60 DCK3-CBH CBH3-3 TPGH0802 190-200 2.00
      DCK6-CBH89-99-M 89-99 CBH32-60 DCK3-CBH CBH3-2 TPGH0802 181-191 2.00
      DCK6-CBH98-108-M 98-108 CBH32-60 DCK3-CBH CBH3-1 TPGH0802 172-182 2.00
      Suitable: DEREK, KYOCERA Or SUMITOMO Insert
      Notice:
      1. Boring head has only one cartridge, without insert; please order them separately.
      2. Anti-clockwise spindle rotation required.
      • CBH boring head loaded in the opposite direction can process boring machining.
      • Machining range: Ф116-Ф200.
      DEREK

      CBH-L Boring Tool For Pin Turning (Large Diameter)

      CBH Micro Boring Tools 24
      CBH Micro Boring Tools 25
      Specification Range Фd Flange adapter Extention bridge L Balance weight Boring head Boring range Boring depth Finish head Weight
      DCK6-CBH13-115-L 13-115 DCK6-FL200 DST200 180 DCK4-CB200 CBH41-74
      (CBH4-1)
      TCMT 1102
      With
      (For choice) TPGH 1103      		 108-192 75, Φ＜180 DCK4-CBH 8.70
      DCK6-CBH112-215-L 112-215 DCK6-FL200 DST300 280 DCK4-CB200 108-292 75, Φ＜280 DCK4-CBH 10.02
      DCK6-CBH212-315-L 212-315 DCK6-FL200 DST400 380 DCK4-CB200 108-392 75, Φ＜380 DCK4-CBH 11.92
      DCK6-CBH312-415-L 312-415 DCK6-FL200 DST500 480 DCK4-CB200 108-492 75, Φ＜480 DCK4-CBH 13.82
      DCK6-CBH412-515-L 412-515 DCK6-FL200 DST600 580 DCK4-CB200 108-592 75, Φ＜580 DCK4-CBH 15.72
      DCK6-CBH512-615-L 512-615 DCK6-FL200 DST700 680 DCK4-CB200 108-692 75, Φ＜680 DCK4-CBH 17.70
      DCK6-CBH612-715-L 612-715 DCK6-FL200 DST800 780 DCK4-CB200 108-792 75, Φ＜780 DCK4-CBH 19.60
      Suitable: DEREK, KYOCERA Or SUMITOMO Insert
      Notice:
      1. Boring head with one cartridge, without insert; please order it separately.
      2. Anti-clockwise spindle rotation required.
      DEREK

      CBH Boring Head Operation Manual

      Installation Of Cartridge and Inserts
      1 Installation Of Cartridge and Inserts

      ① Clean the mounting surface of insert holder and boring head. Mount the insert holder while fitting into the convex on the head. Make sure there is no gap and misalignment between insert holder and boring head; fasten the locking screw properly. For back boring, please mount the insert holder turned over 180°. (See Fig. A)

      ② Use compressed air to clean the surface of inserts and insert pocket on cartridge. Ensure they are free of any dust or oil. Position the indexable insert on the insert pocket and tighten the clamping screw securely. (See Fig. B)

      Structure
      2 Structure
      • ① DCK Connection
      • ② Boring Head
      • ③ Graduated Dial
      • ④ Locking Screw
      • ⑤ Grease Hole
      • ⑥ Clamping Screw
      • ⑦ Cartridge
      Usage of graduated dial
      3 Usage of Graduated Dial

      ① Unlock locking screw (figure 4).

      ② Clockwise adjust the dial (figure 3). When the dial scale moves one division, 0.01mm is added to the boring hole diameter; when the matched line of dial and vernier scale moves one smaller division (as per vernier), 0.001mm is added to the boring hole diameter.

      ③ Lock the locking screw (figure 4).

      Operating Instructions
      4 Operating Instructions

      Before operation, check that the indexable insert is suitable and the locking screw is fastened securely.

      ① Loosen the locking screw in anti-clockwise direction.

      ② Adjust the graduated dial clockwise to increase working diameter, and adjust anti-clockwise to reduce working diameter.

      ③ Please keep the adjustment graduated dial in the same direction as the beginning of rotating when finishing.

      ④ Tighten the locking screw clockwise properly.

      Notices Of The User
      5 Notices Of The User

      ① Use boring head within suggested range.

      ② Rotating the graduated dial without loosening the locking screw will cause damage to the internal moving parts of the boring head.

      ③ Check the following two possible troubles when the rotation meets big resistance or refuses to move:
      • If the locking screw is loosened.
      • If the boring diameter exceeds the boring range of the boring head.

      ④ Machine spindle shall run in an anticlockwise direction when back boring is adopted.

      ⑤ Inject grease until it overflows from the circumference of the graduated dial. In addition to lubrication, it helps remove infiltrated coolant and impurities. Adjust the graduated dial regularly to avoid grease hardening. Do not overhaul the boring head without instructions from DEREK.

      SUPPORT & SPECIFICATIONS

      Frequently Asked Questions (FAQ)

      What is the adjustment precision of the CBH Micro Boring Tools?

      The standard adjusting rate on the dial is 0.01mm per division, and it reaches 0.001mm (micrometer grade) when utilizing the vernier scale.

      How do I calculate whether back-boring is feasible?

      Feasibility is verified using the formula: C ＞ (D + d) / 2, where C is the minimum entry bore diameter, D is the back bore diameter, and d is the diameter of the boring head. Note that anti-clockwise spindle rotation is required for back-boring operations.

      Which insert brands and models are compatible with CBH tools?

      CBH boring tools are suitable for DEREK, KYOCERA, or SUMITOMO indexable inserts, with cartridge support for both TC (e.g., TCMT1102) and TP (e.g., TPGH0802, TPGH1103) styles.

      What makes large-diameter CBH tools lightweight and stable?

      The large diameter tools (ranging from 148mm up to 1275mm) utilize high-rigidity bridge structures made of 70%–90% aluminum. They are balanced at G6.3 up to 1,000 rpm and include internal coolant supply to ensure high cutting efficiency and machining stability.

      Which cartridge is included with the standard quotation?

      Cartridge CBHx-1 is included in the standard quotation, whereas CBHx-2 and CBHx-3 cartridges must be ordered separately.

      What is the primary maintenance requirement for the graduated dial?

      Grease should be injected through the grease hole until it overflows slightly from the circumference of the graduated dial. This prevents internal contamination from coolants/impurities. Always loosen the locking screw before adjusting the dial to prevent damaging internal mechanisms.

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