Bosch GWX10-45PE: problems, parts and running costs

Checked: 2026-10-16

Summary

The GWX10-45PE is a compact corded 4-1/2 in. X-LOCK angle grinder: 10 amp, 120 V, 11,000 rpm and 4.6 lb, with tool-free wheel changes and a lock-on paddle switch. The “-RT” listing is the Amazon Renewed version of the same tool. No independent lab has tested this exact model, so the value rests on Bosch’s 1-year warranty and the renewed guarantee.

Common problems and fixes

No variable speed and no overload protection — Bosch’s own technical data lists neither; no workaround reported. [1]
No X-Brake rapid stop — this corded model has no rapid-stop function; Bosch says a corded solution is in development. [6]
One-way X-LOCK compatibility — an X-LOCK grinder accepts only X-LOCK accessories, so you are committed to that ecosystem; select X-LOCK wheels do fit older standard-arbor grinders. [17]
Renewed units ship without a case — they may also arrive without original packaging; confirm the guard and auxiliary handle are included. [11]
No independent instrumented test — no test of the exact model was found, so durability is unverified. [7][8]
Sibling variants are easy to confuse — GWX10-45E has a slide switch and GWX10-45DE has no lock-on paddle; all share the 10-amp, 11,000 rpm platform. [1][3]

Parts and consumables

X-LOCK wheels and accessories — grinding discs, cutting wheels, flap discs and wire brushes; recurring consumables. [1][5]
Replacement brushes — Service Minder brushes stop the tool when maintenance is due. [1]
Dust-extraction hoods — optional 18DC-5E and GA50DC hoods. [1]
Spare guards — grinding guard 1.600.A00.XL4 and cutting guard 1.600.A01.2JJ are listed as spares. [1]
Auxiliary handle — included and adjustable; keep a spare if it is lost. [1]
Spare parts — Bosch lists a US spare-parts catalogue entry for part number 3601GB1110. [1]

Yearly running cost

Not enough data. The recurring costs are X-LOCK wheels and accessories, replacement brushes and any optional dust-extraction hoods. [1][5]

When it is a good buy

Renewed pricing — renewed listings run in the roughly $20-50 range; a cheap way into X-LOCK if you accept refurbished risk and the renewed guarantee. [2][12]
New retail — Home Depot and Acme Tools list it at $115 (2026), Preston Hardware at $149 as an online-exclusive special order. [13][15][16]
Value at new retail — a reasonable but not standout corded grinder; the X-LOCK quick change and 4.6 lb weight are the differentiators. [13]
Alternatives — DeWalt DWE402-class 10-amp grinders and Bosch’s own non-X-LOCK GWS10-450P are the conventional-arbor picks; Porter-Cable 7.5-amp was named best corded by Bob Vila’s 2025 roundup. [7][13]