Popular Spiral Drill Collar for Drill Rig Parts

• Certification：CE, ISO 9001:2000, ISO 9001:2008
• Standard：AISI
• Surface Treatment：Galvanized
• Manufacturing Process：Forging
• Material：Alloy Steel
• Model：Glnc35

=== Base Info ===

• Model NO.：GLNC35
• Inner Length：82.6mm
• Inner Diameter：82.15mm
• Transport Package：Normal Sea Packing
• Specification：chromium-molybdemum alloy steel
• Trademark：Glorytek
• Origin：China
• Production Capacity：3000PCS,Month

=== Description ===
OD size(mm)OD size(inch)ODIDLengthBevel diameter(mm)≤88.9≤3 1/2+1.20+1.60±152.4±0.4>88.9~114.3>3 1/2~4 1/2+1.60>114.3~139.7>4 1/2~5 1/2+2.00>139.7~165.1>5 1/2~6 1/2+3.20>165.1~215.9>6 1/2~8 1/2+4.00>215.9~241.3>8 1/2~9 1/2+4.80>241.3>9 1/2+6.40
Stress-relief slot for connectionConnectionL ±1.59mmDcb+0.4 -0mm±20.83mm/mDrc+0 -0.79mmLrc+0 -3.18mmNC3582.682.15166.6782.1585.73NC3888.988.11166.6789.1092.08NC40101.692.87166.6795.81104.78NC44101.6101.60166.67106.36104.78NC46101.6106.76166.67109.93104.78NC50101.6117.48166.67120.45104.78NC56114.3121.84250.00134.04117.48NC61127.0132.95250.00148.31130.18NC70139.7152.00250.00170.54142.88NC77152.4166.29250.00188.01155.586 5/8 Reg114.3134.14166.67137.59117.487 5/8 Reg120.7148.83250.00161.26123.838 5/8 Reg123.8172.24250.00185.45127.00