Straight Shank Twist Drills DIN1897 - DIN1897

Model No.: SKH126

Features: steel tooth roller rock bit
1.Specification:12 1/4" 311.1mm
2.IADC:126
3.WOB:0.35--1.00 KN/mm
4.sealing: rubber rings

Model No.: SKH116

Features: steel tooth tricone bits
1.Specification:14 3/4" 374.6mm
2.IADC:116
3.WOB:0.35--0.90 KN/mm
4.sealing: rubber rings

Model No.: SKH116

Features: steel tricone roller bit
1.Specification:12 1/4" 311.1mm
2.IADC:116
3.WOB:0.35--0.90 KN/mm
4.sealing: rubber rings

Model No.: SKH126

Features: steel rock bit for water well drilling
1.Specification:9 1/2" 241.3mm
2.IADC:126
3.WOB:0.35-1.00 KN/mm
4.sealing: rubber

Model No.:

Features: 1)190.5mm steel tooth tricone roller bit
2)15 year's experience in drill bit
3) certificate:ISO9001:2000
4)MOQ: 1pc

Model No.:

Features: 1)158.7mm steel toth tricone bit for mining
2)15 year's experience in drill bit
3) certificate:ISO9001:2000
4)MOQ:1pc

Model No.: GA214

Features: types of bearing:joumal beanngs
types of sealing:rubber rings
item:steel tooth bit for medium hard with hard stringers

Model No.: SKH116

Features: 1.specification:8 1/2'' 215.9mm
2.IADC:116
3.WOB:0.35-0.90KN/mm
4.Rotary speed:150-70 rpm
5.certification: API

Model No.: GJT435G

Features: 1.certification:API
2.drilling hours:70 hours
3. High quality, low price
4. good after-sales service

Model No.: GJT415G

Features: 1.certification:API
2.drilling hours:70 hours
3. High quality, low price
4. good after-sales service

Model No.: GJ135

Features: 1.certification:API
2.drilling hours:70 hours
3. High quality, low price
4. good after-sales service

Model No.: GJ115

Features: 1.certification:API
2.drilling hours:70 hours
3. High quality, low price
4. good after-sales service