Name: Articles
Brand: EnSheng

Practical notes on bit selection, drilling parameters and tool care, written by the EnSheng Bit factory team.

9 September, 2026

Most tricone bits fail at the bearing, not the teeth. Four failure modes, what the pulled bit tells you, and the prevention checklist.

12 August, 2026

PDC cuts faster, tricone survives tougher ground. A practical comparison of cutting action, cost per metre and where each bit fails.

8 July, 2026

IADC codes define formation, cutting structure and bearing. Read the three digits correctly and spec the right tricone bit for your ground.

10 June, 2026

When a bit loses gauge the hole loses diameter, and the casing pays for it. Causes, measurement, prevention and when to pull the bit.

13 May, 2026

A formation-by-formation guide to water well bits: drag bits, steel tooth and TCI tricone, PDC and DTH, with IADC codes and drilling notes.

15 April, 2026

Choosing a back reamer by ground, diameter and pullback: barrel, fly cutter, fluted, stack plate and PDC hole openers compared.

11 March, 2026

TFA, HSI and nozzle velocity decide whether cuttings leave the hole or ball the bit. How to size nozzles for PDC and tricone bits.

11 February, 2026

Matrix resists erosion, steel absorbs impact. A practical comparison of PDC bit bodies, repairability and where each one pays off.

14 January, 2026

Match a DTH bit to your compressor, hole size and rock: air pressure, button shape, face design and the mistakes that cost metres.