Showing 1–15 of 52 results

  • 5 1/2″ DHA417GT

    Specifications

    Size: 5 1/2″ (139.7 mm)
    IADC: 417
    Bearing and Seal: Journal Bearing / O-Ring Rubber seal
    No. of Rows: 3-3-3
    Inner Row: Chisel / 37 pcs
    Gauge Row: Wedge / 33 pcs
    Trimming Row: Wedge / 16 pcs
    Bevel Row: Flat / 33 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 14.5
    Weight on Bit (KN/mm): 0.35 ~ 0.90
    ROP (rpm): 70 ~ 140

  • 5 1/2″ DHA437GT

    Specifications

    Size: 5 1/2″ (139.7 mm)
    IADC: 437
    Bearing and Seal: Journal Bearing / O-Ring Rubber seal
    No. of Rows: 3-3-3
    Inner Row: Chisel / 38 pcs
    Gauge Row: Wedge / 33 pcs
    Trimming Row: Wedge / 16 pcs
    Bevel Row: Flat / 33 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 14.5
    Weight on Bit (KN/mm): 0.35 ~ 1.0
    ROP (rpm): 60 ~ 140

  • 5 1/2″ DHA537GT

    Specifications

    Size: 5 1/2″ (139.7 mm)
    IADC: 537
    Bearing and Seal: Journal Bearing / O-Ring Rubber seal
    No. of Rows: 4-4-3
    Inner Row: Chisel / 60 pcs
    Gauge Row: Wedge / 37 pcs
    Trimming Row: Wedge / 9 pcs
    Bevel Row: Ovoid / 56 pcs
    Pin Connection: 2 7/8 REG
    Bit Weight (KG): 14.5
    Weight on Bit (KN/mm): 0.40~1.05
    ROP (rpm): 40~110

  • 5 1/2″ DHA617GY

    Specifications

    Size: 5 1/2″ (139.7 mm)
    IADC: 617
    Bearing and Seal: Journal Bearing /O-Ring Rubber seal
    No. of Rows: 5-4-4
    Inner Row: Conical / 80 pcs
    Gauge Row: Conical / 44 pcs
    Bevel Row: Ovoid / 44 pcs
    Pin Connection: 2 7/8 REG
    Bit Weight (KG): 14.5
    Weight on Bit (KN/mm): 0.50 ~ 1.05
    ROP (rpm): 40 ~ 100

  • 5 1/2″ DHA637YT

    Specifications

    Size: 5 1/2″ (139.7 mm)
    IADC: 637
    Bearing and Seal: Journal Bearing / O-Ring Rubber seal
    No. of Rows: 5-4-4
    Inner Row: Conical / 85 pcs
    Gauge Row: Ovoid / 43 pcs
    Trimming Row: Wedge / 18 pcs
    Bevel Row: Ovoid / 43 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 14.5
    Weight on Bit (KN/mm): 0.60 ~ 1.1
    ROP (rpm): 40 ~ 90

  • 5 1/2″ WHA637YT

    Specifications

    Size: 5 1/2″ (139.7 mm)
    IADC: 637
    Bearing and Seal: Journal Bearing / O-Ring Rubber seal
    No. of Rows: 5-4-4
    Inner Row: Conical / 85 pcs
    Gauge Row: Ovoid / 43 pcs
    Trimming Row: Wedge / 18 pcs
    Bevel Row: Ovoid / 43 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 14.5
    Weight on Bit (KN/mm): 0.60 ~ 1.1
    ROP (rpm): 40 ~ 90

  • 5 7/8″ DHV517GT

    Specifications

    Size: 5 7/8″ (149.23 mm)
    IADC: 517
    Bearing and Seal: Journal Bearing /Composite seal
    No. of Rows: 4-3-3
    Inner Row: Chisel / 49 pcs
    Gauge Row: Wedge / 36 pcs
    Trimming Row: Wedge / 9 pcs
    Bevel Row: Flat / 36 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 19.0
    Weight on Bit (KN/mm): 0.35 ~ 1.05
    ROP (rpm): 50 ~ 120

  • 6″ DHV537GT

    Specifications

    Size: 6″ (152.4 mm)
    IADC: 537
    Bearing and Seal: Journal Bearing / Composite seal
    No. of Rows: 4-3-3
    Inner Row: Chisel / 49 pcs
    Gauge Row: Wedge / 37 pcs
    Bevel Row: Flat / 37 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 21.0
    Weight on Bit (KN/mm): 0.40 ~ 1.05
    ROP (rpm): 40 ~ 110

  • 6″ DHV617YT

    Specifications

    Size: 6″ (152.4 mm)
    IADC: 617
    Bearing and Seal: Journal Bearing / Composite seal
    No. of Rows: 4-4-4
    Inner Row: Conical / 68 pcs
    Gauge Row: Ovoid /44 pcs
    Trimming Row: Wedge /10 pcs
    Bevel Row: Flat / 44 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 18.0
    Weight on Bit (KN/mm): 0.50 ~ 1.05
    ROP (rpm): 40 ~ 100

  • 6 1/8″ DHV437GT

    Specifications

    Size: 6 1/8″ (155.58 mm)
    IADC: 437
    Bearing and Seal: Journal Bearing / Composite seal
    No. of Rows: 4-3-3
    Inner Row: Chisel / 43 pcs
    Gauge Row: Wedge / 30 pcs
    Trimming Row: Wedge / 12 pcs
    Bevel Row: Flat / 30 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 21.0
    Weight on Bit (KN/mm): 0.35 ~ 1.00
    ROP (rpm): 60 ~ 140

  • 6 1/4″ DHA517GX

    Specifications

    Size: 6 1/4″ (158.75 mm)
    IADC: 517
    Bearing and Seal: Journal Bearing /O-Ring Rubber seal
    No. of Rows: 4-3-3
    Inner Row: Wedge / 49 pcs
    Gauge Row: Wedge / 35 pcs
    Bevel Row: Flat / 35 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 21.0
    Weight on Bit (KN/mm): 0.35 ~ 1.05
    ROP (rpm): 50 ~ 120

  • 6 1/2″ DHA437GX

    Specifications

    Size: 6 1/2″ (165.1 mm)
    IADC: 437
    Bearing and Seal: Journal Bearing / O-Ring Rubber seal
    No. of Rows: 4-3-3
    Inner Row: Wedge / 53 pcs
    Gauge Row: Wedge / 37 pcs
    Bevel Row: Flat / 37 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 21.0
    Weight on Bit (KN/mm): 0.35 ~ 1.00
    ROP (rpm): 60 ~ 140

  • 6 1/2″ DHV517G

    Specifications

    Size: 6 1/2″ (165.1 mm)
    IADC: 517
    Bearing and Seal: Journal Bearing / Composite seal
    No. of Rows: 4-3-3
    Inner Row: Chisel / 54 pcs
    Gauge Row: Wedge / 37 pcs
    Bevel Row: Flat / 37 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 21.0
    Weight on Bit (KN/mm): 0.35 ~ 1.05
    ROP (rpm): 50 ~ 120

  • 6 1/2″ DHV537GT

    Specifications

    Size: 6 1/2″ (165.1 mm)
    IADC: 537
    Bearing and Seal: Journal Bearing / Composite seal
    No. of Rows: 4-4-3
    Inner Row: Chisel / 65 pcs
    Gauge Row: Wedge / 43 pcs
    Trimming Row: Wedge / 5 pcs
    Bevel Row: Flat / 38 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 21.0
    Weight on Bit (KN/mm): 0.40 ~ 1.05
    ROP (rpm): 40 ~ 110

  • 6 1/2″ DHV617GX

    Specifications

    Size: 6 1/2″ (165.1 mm)
    IADC: 617
    Bearing and Seal: Journal Bearing / Composite seal
    No. of Rows: 4-4-4
    Inner Row: Wedge / 71 pcs
    Gauge Row: Wedge / 43 pcs
    Bevel Row: Flat / 43 pcs
    Pin Connection: 3 1/2 REG
    Bit Weight (KG): 21.0
    Weight on Bit (KN/mm): 0.50 ~ 1.05
    ROP (rpm): 40 ~ 100