Wolfcraft 3764000 Review

Drilling a clean, round hole through timber, plasterboard, plastic, or thin metal is surprisingly difficult with a standard twist drill bit — the moment you go beyond about 13 millimetres in diameter, most drill chucks cannot grip the bit, and the torque required becomes hard to manage. A hole saw solves both problems: it uses a cylindrical blade with teeth around the rim to cut a plug out of the material, leaving a perfectly round hole for pipework, electrical back boxes, downlights, cable pass-throughs, or lock installations. For plumbers, electricians, and kitchen fitters, a good set of hole saws is as essential as a spirit level. Bi-metal construction — where a tough, flexible steel body carries hardened high-speed steel teeth — has become the standard for versatile hole saws that can handle wood, plastic, and metal without needing a separate set for each material. This review examines a focused 5-piece bi-metal hole saw kit designed specifically for the diameters that plumbing and electrical installations demand most often.

Hole saws range from budget carbon steel sets that dull after a few holes in softwood to professional bi-metal kits that can cut hundreds of holes in metal studs without losing their edge. The key factors when choosing a set are the tooth material (HSS bi-metal is the sweet spot for value and versatility), the cutting depth (typically 38 to 40 millimetres for standard hole saws), and the arbor or adapter system. A hex-shank adapter that fits directly into a drill chuck or quick-change bit holder saves time compared to threaded arbors that need a spanner. Wolfcraft, a German brand with over 70 years in the DIY and professional accessory market, has built a reputation for well-designed, sensibly priced consumables. The 3764000 set focuses on five specific diameters used in electrical and plumbing work — 35, 40, 51, 65, and 68 millimetres — covering the most common knockout sizes for sockets, switches, waste pipes, and extractor fan ducts.

This review examines the Wolfcraft 3764000 5-piece BIM hole saw set in detail. We cover the blade quality and cutting performance, the adapter and centring system, the practical diameters included, the storage case, and who this set is best suited to — from DIY bathroom fitters to professional electricians.

The Wolfcraft 3764000 set contains five bi-metal hole saw blades in the diameters most commonly needed for electrical and plumbing installations: 35, 40, 51, 65, and 68 millimetres. The 35 and 40 millimetre saws cover standard electrical back box and downlight cutouts, while 51 millimetres suits waste pipe penetrations through cabinet panels, and 65 and 68 millimetres handle larger pipework and extractor ducting. Each blade has a cutting depth of 40 millimetres, which is sufficient to cut completely through standard kitchen cabinet panels, plasterboard sheets, timber studs up to 38 millimetres, and most domestic door leaves. The bi-metal construction bonds hardened high-speed steel teeth to a flexible alloy steel body — the teeth stay sharp through metal and hardwood, while the body absorbs vibration and resists cracking if the saw binds mid-cut.

The set uses an 11-millimetre hex-shank adapter — a practical design choice that makes it compatible with virtually any drill or cordless screwdriver. The hexagonal shank locks securely into standard three-jaw chucks and also fits quick-change bit holders on impact drivers, giving you flexibility in which tool you use. The included centring drill bit is a 6-millimetre HSS twist bit that extends through the centre of the hole saw to guide the cut and prevent the saw from wandering when starting. This pilot bit is replaceable when it eventually dulls, and the 5/8-inch threaded arbor system is a common standard, meaning you can use the adapter with other hole saw brands if you need diameters not included in this set.

In use, the BIM construction shows its value when cutting mixed materials. The HSS teeth stay sharp through metal studs and aluminium panels, while the flexible body prevents the violent kickback that can occur with fully hardened saws when they catch an edge. The 40-millimetre depth is the practical limit for a single-pass cut — if you need to drill through a 75-millimetre worktop or structural timber, you will need to cut from both sides or use a deeper hole saw. The set is compatible with wood (soft and semi-hard), insulation boards, plasterboard and drywall, plastics, and thin non-ferrous metals — the manufacturer advises against use on hardened steel or stainless steel, which require specialist carbide-grit hole saws.

The hole saws are supplied in a bi-material plastic storage case that Wolfcraft has designed for durability and organisation. Each saw has its own moulded slot with the diameter clearly marked, so you can grab the right size without sorting through a jumble of blades. The case lid closes securely, and the overall package is compact enough to fit in a tool bag or van racking without taking up excessive space. This is a meaningful quality-of-life feature — hole saws without proper storage quickly become dull from banging against each other, and locating the right size in a drawer full of loose saws wastes time on site. The case also makes it easy to check at a glance that all five saws and the adapter have been packed away before moving to the next job.

The Wolfcraft 3764000 set holds a 4.4 out of 5 stars rating from 480 customer reviews on Amazon France, with a bestseller ranking of #224 in Reciprocating Saw Blades. The large review base and strong rating are reassuring for a consumable product — hole saws are judged by how many clean holes they cut before dulling, and 480 users collectively voting 4.4 stars suggests the BIM teeth deliver on the promised longevity. The set carries TÜV testing certification, an independent German safety and quality mark that adds credibility to the performance claims. At approximately €43 for five saws plus adapter, centring bit, and case, the per-saw cost is around €8.60 — competitive with individual quality hole saws and significantly better value than buying each diameter separately. For a DIYer tackling a bathroom or kitchen renovation, or an electrician equipping a new tool bag, the set represents smart, focused value.

The Wolfcraft 3764000 BIM hole saw set is a focused 5-piece kit built for electricians, plumbers, kitchen fitters, and serious DIY renovators who need clean, repeatable holes in the specific diameters that electrical back boxes, downlights, waste pipes, and extractor ducts demand — at a price that makes economic sense for both occasional and regular use.