This tool is referred to as an Axe. This is originally called a Head and Helve. The Axe was a rapid tool to dig a trench very quickly and effectively. This tool was carried by all non - commissioned ranks in the British Army. They were used as to digging shallower trenches, and lastly used as a timely weapon. Not to mention, a very severe weapon for close battles ("10 Things").
The Gas Mask/Helmet
Weapons that involved chemicals were first put to use by the Germans in 1915. For this matter, the Gas Mask was created to eliminate chemicals of being digested. The first gas masks were basically made of, "simply cotton pads soaked in chemicals or poorly ventilated hoods with eyepieces that fogged up and cracked" ("10 Things"). This mask was one of the higher technology of the war, as weapons upgraded the equipment was too. This mask was used by multiple armies, armed and unarmed soldiers ("10 Things").
(Spanish Steel) - Picture Citation | The Steel Helmet is a good example of the more upgraded technology of WW1. Before the Steel Helmet came out, soldier would were soft cloths on their heads for protection. Which, people would really consider protection. Not to mention, they actually provided to protection what so ever against artillery. These helmets were made to protect the soldiers from shrapnel and other projectiles that could have possibly fell from above where ever the soldiers were located. These were very useful because the most valuable thing of a soldier was his head ("10 Things").
Camouflage played a rather large part in the war. Camouflage became very popular, and was then also made into some nation's army uniforms. Soldiers wore Camouflage because they "were more subdued than the brightly colored uniforms of the nineteenth century" ("10 Things"). Moving on, they were used for soldiers to blend more into the environment making the soldier more difficult to spot for snipers/other artillery users ("10 Things").
Pocket Surgical Kit
The Pocket Surgical Kit was very helpful for soldiers in WW1. Most major surgeries were done in the hospitals in the war. However, in emergencies if the person could not make it to the hospital, basic surgery could be preformed closer to the battlefield. This kit saved and helped lots of people, and also helped create more surgeons which later became more increased ("10 Things").
Spanish Steel Hat. Varusteleka, www.varusteleka.com/en/bestsearch/steel%20helmets?q=steel%20helmets. Accessed 24 Mar. 2017.
“10 Things That Could Have Saved Your Life In The Trenches.” Imperial War Museums, www.iwm.org.uk/history/10-things-that-could-have-saved-your-life-in-the-trenches. Accessed 24 Mar. 2017.