MTi Group’s MULTIFIT SPIDER ensures accurate primer placement in a range of hole sizes and guarantees designed booster placement. Their unique designs offer flexibility and security for primers in challenging environments. The MTi Group MULTIFIT SPIDER is an Underground spider suited to holding different boosters in any hole diameter from 64 mm to 115 mm.

The MULTIFIT 150G SPIDER is designed to load the booster ‘shotgun’ style. Once inside, the booster and wire are simple to install in any type of hole. The spider is designed to keep the booster in position and completely centralised in the explosive column. The spider features a plastic housing that keeps the booster from being damaged and ensures the wire is protected. Available for 150g or 250g primer configurations.